900000000000490003: Description inactivation indicator attribute value reference set (foundation metadata concept)

SNOMED CT Concept\SNOMED CT Model Component\Foundation metadata concept (foundation metadata concept)\Reference set\Attribute value type\Description inactivation indicator reference set

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT model component module (core metadata concept)

Descriptions:

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
Description inactivation indicator reference set	Is a	Attribute value type	true	Inferred relationship	Some

Members	valueId
A rare mitochondrial disease characterised by infantile onset of severe regression after a period of normal development, epileptic encephalopathy, hypotonia, movement disorder, cardiomyopathy, hyperglycinaemia and lactic acidosis. Optic atrophy may also be present. Brain imaging findings are highly variable and include white matter abnormalities. The disease is typically fatal in infancy. Caused by homozygous mutation in the BOLA3 gene on chromosome 2p13.	Outdated component (foundation metadata concept)
A rare mitochondrial disease characterised by prenatal complications including oligohydramnios, fetal growth restriction, hydrops, and anaemia. This is followed by severe lactic acidosis, hyaline membrane disease, pulmonary hypertension, cardiac anomalies, liver dysfunction, urogenital abnormalities and progressive renal disease, seizures, thrombocytopenia, and sideroblastic anaemia resulting in multisystem organ failure and death shortly after birth. Less severely affected patients that survive the neonatal period have been reported to have sensorineural hearing loss and developmental delay.	Outdated component (foundation metadata concept)
A rare mitochondrial disease characterized by a variable phenotype of congenital sensorineural deafness, intermittent or persistent hypoglycemia and hepatic and renal dysfunction potentially progressing to organ failure. Serum lactate levels are variably increased, deficiency of mitochondrial respiratory chain complexes I, III, and IV is observed in the liver and in fibroblasts.	Outdated component (foundation metadata concept)
A rare mitochondrial disease characterized by early infantile onset of progressive neurological deterioration with seizures, spasticity and lack of psychomotor development. Brain imaging shows severe leukodystrophy and abnormalities of neuronal migration. Lactic acidosis is common. The disease is usually fatal in early childhood.	Outdated component (foundation metadata concept)
A rare mitochondrial disease characterized by infantile onset of severe regression after a period of normal development, epileptic encephalopathy, hypotonia, movement disorder, cardiomyopathy, hyperglycinemia and lactic acidosis. Optic atrophy may also be present. Brain imaging findings are highly variable and include white matter abnormalities. The disease is typically fatal in infancy. Caused by homozygous mutation in the BOLA3 gene on chromosome 2p13.	Outdated component (foundation metadata concept)
A rare mitochondrial disease characterized by prenatal complications including oligohydramnios, fetal growth restriction, hydrops, and anemia. This is followed by severe lactic acidosis, hyaline membrane disease, pulmonary hypertension, cardiac anomalies, liver dysfunction, urogenital abnormalities and progressive renal disease, seizures, thrombocytopenia, and sideroblastic anemia resulting in multisystem organ failure and death shortly after birth. Less severely affected patients that survive the neonatal period have been reported to have sensorineural hearing loss and developmental delay.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of a distinctive MRI pattern of cavitating leucodystrophy, predominantly in the posterior region of the cerebral hemispheres. The clinical picture varies widely between acute neurometabolic decompensation in infancy with loss of developmental milestones, seizures and pyramidal signs rapidly evolving into spastic tetraparesis, to subtle neurological symptoms presenting in adolescence. The disease course tends to stabilise over time in most patients and marked recovery of milestones may be observed.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of a distinctive MRI pattern of cavitating leukodystrophy, predominantly in the posterior region of the cerebral hemispheres. The clinical picture varies widely between acute neurometabolic decompensation in infancy with loss of developmental milestones, seizures and pyramidal signs rapidly evolving into spastic tetraparesis, to subtle neurological symptoms presenting in adolescence. The disease course tends to stabilize over time in most patients and marked recovery of milestones may be observed.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of a highly variable phenotypic spectrum comprising delayed motor development, peripheral neuropathy, cataract, short stature due to growth hormone deficiency, nystagmus, sensorineural hearing loss, dysmorphic facial features and skeletal abnormalities consistent with spondyloepimetaphyseal dysplasia. Hyperextensible joints, achalasia and telangiectasia have also been described. Cognition is normal. Atrophy of the pituitary gland has been observed in brain imaging.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of a variable clinical phenotype ranging from fetal hydrops and postnatal hypotonia, bradycardia and respiratory failure, resulting in death in the neonatal period, to infantile onset of episodes of acute cardiopulmonary failure associated with severe lactic acidosis and slowly progressive muscle weakness. Muscle biopsy shows reduced activity of mitochondrial complexes I, III, and IV.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of a variable clinical phenotype with the core features of optic atrophy, ataxia and hypotonia. Additional common manifestations include global developmental delay with or without regression, neuropathy, spasticity, and microcephaly, less frequently seizures, movement disorder, hearing loss and respiratory failure. Brain imaging may show abnormalities of the corpus callosum, basal ganglia and midbrain, cerebral or cerebellar atrophy, or white matter abnormalities. The condition is frequently fatal at an early age.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of a variable phenotype comprising delayed psychomotor development or neurodevelopmental regression, hypotonia, seizures, microcephaly, optic atrophy, pyramidal signs, and peripheral neuropathy among others. Age of onset and disease severity is also variable with some cases taking a fatal course in early infancy. Serum lactate levels may be elevated. Reported brain imaging findings include abnormal signals in the basal ganglia, cerebral and/or cerebellar atrophy and white matter abnormalities.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of bilateral auditory neuropathy and optic atrophy. Patients present hearing and visual impairment in the first or second decade of life, while psychomotor development is normal. Bilateral retinitis pigmentosa has been reported in association.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of early onset of hypertrophic cardiomyopathy and variable neurologic symptoms including global developmental delay, hypotonia, intellectual disability, visual impairment and seizures. Lactic acidosis is present in all patients. Muscle biopsy usually shows decreased activity of mitochondrial complexes I and IV. Brain imaging may reveal variable abnormal signal intensities in the thalamus, basal ganglia, and/or brain stem.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of failure to thrive, infantile encephalopathy, muscular hypotonia, global developmental delay and regression, pulmonary arterial hypertension, episodes of apnea and bradycardia, respiratory failure, hyperglycinemia and lactic acidosis. Hypertrophic or dilated cardiomyopathy has also been reported. Brain imaging may show leukoencephalopathy involving variable regions. The disease is typically fatal in early infancy. Caused by homozygous or compound heterozygous mutation in the NFU1 gene on chromosome 2p13.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of failure to thrive, infantile encephalopathy, muscular hypotonia, global developmental delay and regression, pulmonary arterial hypertension, episodes of apnoea and bradycardia, respiratory failure, hyperglycinaemia and lactic acidosis. Hypertrophic or dilated cardiomyopathy has also been reported. Brain imaging may show leucoencephalopathy involving variable regions. The disease is typically fatal in early infancy. Caused by homozygous or compound heterozygous mutation in the NFU1 gene on chromosome 2p13.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of neonatal onset of severe cardiac and/or neurologic signs and symptoms mostly associated with a fatal outcome in the neonatal period or in infancy, although a milder phenotype with later onset and slowly progressive neurologic deterioration has also been reported. Clinical manifestations are variable and include respiratory insufficiency, hypotonia, cardiomyopathy and seizures. Serum lactate is elevated in most cases. Brain imaging may show cerebellar atrophy or hypoplasia.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of onset of episodic developmental regression in the first year of life, often in the setting of febrile illnesses, as well as hypotonia and seizures or refractory epileptic encephalopathy. Other observed features include ataxia, dystonia or optic atrophy among others. Patients do not achieve independent ambulation or meaningful speech. Brain imaging may show progressive cerebellar or diffuse atrophy and signal abnormalities of the basal ganglia. Serum lactate is often elevated.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of prenatal or early infantile onset of severe cardiomyopathy, failure to thrive and global developmental delay, sensorineural hearing loss and severe lactic acidosis. Hepatic involvement and adrenal insufficiency, as well as encephalopathy and anomalies of deep gray matter structures on brain MRI have also been reported.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with characteristics of prenatal or early infantile onset of severe cardiomyopathy, failure to thrive and global developmental delay, sensorineural hearing loss and severe lactic acidosis. Hepatic involvement and adrenal insufficiency, as well as encephalopathy and anomalies of deep grey matter structures on brain MRI have also been reported.	Outdated component (foundation metadata concept)
A rare mitochondrial disease with signs and symptoms within a phenotypic and metabolic spectrum that includes global developmental delay, hypotonia, intellectual disability, optic atrophy, axonal neuropathy, hypertrophic cardiomyopathy, lactic acidosis, and increased excretion of Krebs cycle intermediates. Other variable features are spasticity, seizures, ataxia, congenital cataract, and dysmorphic facial features. Age of onset is in the neonatal period or infancy.	Outdated component (foundation metadata concept)
A rare mitochondrial myopathy with characteristics of motor developmental delay (in infancy), growth impairment and mostly proximal muscle weakness caused by a muscular dystrophy. Muscle biopsy presents myopathic abnormalities and decreased mitochondrial deoxyribonucleic acid (mtDNA) content. Electromyography (EMG) shows a myopathic process and serum creatine kinase is increased. The disease also has characteristics of early onset non-progressive cerebellar atrophy (particularly cerebellar vermis and hemispheres), corticospinal tract dysfunction, and global or partial cerebral atrophy on brain MRI. Additionally, some patients presented with cognitive deficiencies, skeletal abnormalities, tremors and retinopathy. Caused by biallelic mutations in the MSTO1 gene located on chromosome 1q22 with autosomal recessive inheritance. In a very few cases, the pattern of inheritance is autosomal dominant.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder characterised by a highly variable phenotype which may present as exercise intolerance with prominent exertional dyspnoea, progressive muscle weakness, spasticity and neuropathy, but without cognitive impairment or cardiac involvement, or as global developmental delay, growth retardation, hypotonia and spasticity. Hypertrophic cardiomyopathy, optic atrophy, seizures and dysmorphic facial features have also been reported in the more severe phenotype. Serum lactate may be elevated and muscle biopsy shows myopathic features and variably decreased activity of mitochondrial respiratory chain complexes.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder characterized by a highly variable phenotype which may present as exercise intolerance with prominent exertional dyspnea, progressive muscle weakness, spasticity and neuropathy, but without cognitive impairment or cardiac involvement, or as global developmental delay, growth retardation, hypotonia and spasticity. Hypertrophic cardiomyopathy, optic atrophy, seizures and dysmorphic facial features have also been reported in the more severe phenotype. Serum lactate may be elevated and muscle biopsy shows myopathic features and variably decreased activity of mitochondrial respiratory chain complexes.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder due to nuclear DNA anomalies characterised by onset of slowly progressive proximal lower limb weakness and exercise intolerance in the first decade of life, followed by weakness of neck flexor, shoulder and distal leg muscles. Facial muscles become involved still later in the disease course. Additional manifestations are restrictive pulmonary function and short stature. Laboratory studies reveal lactic acidaemia and increased serum creatine kinase.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder due to nuclear DNA anomalies characterized by onset of slowly progressive proximal lower limb weakness and exercise intolerance in the first decade of life, followed by weakness of neck flexor, shoulder and distal leg muscles. Facial muscles become involved still later in the disease course. Additional manifestations are restrictive pulmonary function and short stature. Laboratory studies reveal lactic acidemia and increased serum creatine kinase.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder with a variable clinical phenotype. Manifestations include infantile onset of epileptic encephalopathy, hypotonia, global developmental delay, failure to thrive, complex movement disorder and liver involvement along with childhood onset of severe myoclonus epilepsy, cognitive decline, progressive hearing and visual impairment and progressive tetraparesis. Serum lactate may be increased and brain imaging shows variable atrophy and white matter abnormalities.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder with a variable phenotype, including developmental delay with psychomotor regression, intellectual disability, epilepsy, Leigh syndrome, non-syndromic hearing loss, visual impairment and severe myopathy. Decreased activity of mitochondrial respiratory complexes and lactic acidosis are common findings and diffuse cerebral atrophy may be associated.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder with characteristics of a highly variable clinical phenotype, including a benign infantile mitochondrial type affecting mainly the skeletal muscle, a lethal infantile mitochondrial myopathy linked to severe metabolic acidosis and mitochondrial dysfunction in skeletal muscle and often also in heart, Leigh syndrome, which causes severe, early-onset, progressive, and fatal encephalopathy and French-Canadian type Leigh syndrome, which affects mostly the skeletal muscle, but also brain and liver.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder with characteristics of a spectrum of three main clinical phenotypes comprising a severe neonatal phenotype with early fatal lactic acidosis, a more protracted course with early-onset developmental delay, motor weakness, extrapyramidal signs with or without epilepsy and a phenotype with normal early development and Parkinson-like symptoms starting around the age of one year. Additional variably reported signs and symptoms include cardiomyopathy, optic anomalies, hepatosplenomegaly and abnormal brain MRI findings among others. Deficiencies in mitochondrial oxidative phosphorylation enzymes are inconsistent.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder with characteristics of early onset of severe developmental delay (sometimes with regression of developmental milestones) and intellectual disability, poor or absent speech and hypotonia. Other features include movement disorder, seizures, or microcephaly, among others. Brain imaging may show features of Leigh syndrome with signal abnormalities in the basal ganglia or mid brain, cerebellar atrophy or thin corpus callosum.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder with characteristics of microcephaly, global developmental delay, spastic-dystonic movement disorder, intractable seizures, optic atrophy, autonomic dysfunction and peripheral neuropathy. Serum lactate is increased, and muscle biopsy shows decreased activity of mitochondrial respiratory complexes I and III. Brain imaging reveals progressive cerebellar atrophy and delayed myelination.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder with characteristics of neonatal onset of hypotonia, feeding difficulties, deafness, and early fatal respiratory failure. Cardiac and liver involvement has been reported. Serum lactate is increased and metabolic studies show decreased activity of mitochondrial respiratory complexes I and IV in skeletal muscle.	Outdated component (foundation metadata concept)
A rare mitochondrial oxidative phosphorylation disorder with decreased respiratory complex I and IV enzyme activity. Characteristics of this disease hypotonia, global developmental delay, neonatal onset of progressive pectus carinatum without other skeletal abnormalities, poor growth, sensorineural hearing loss, dysmorphic features and brain abnormalities such as cerebral atrophy, quadriventricular dilatation and thin corpus callosum posteriorly.	Outdated component (foundation metadata concept)
A rare mixed neuronal-glial neoplasm with characteristics of a supratentorial space-occupying lesion in periventricular location, often with prominent cystic change. The histological hallmark of this low-grade neoplasm is its pseudopapillary appearance with a single layer of cuboidal cells around hyalinised blood vessels, associated with sheets or focal collections of neuronal cells. Clinical presentation is variable and non-specific, most frequently with headache and seizures. Prognosis is favourable after complete resection.	Outdated component (foundation metadata concept)
A rare mixed neuronal-glial neoplasm with characteristics of a supratentorial space-occupying lesion in periventricular location, often with prominent cystic change. The histological hallmark of this low-grade neoplasm is its pseudopapillary appearance with a single layer of cuboidal cells around hyalinized blood vessels, associated with sheets or focal collections of neuronal cells. Clinical presentation is variable and non-specific, most frequently with headache and seizures. Prognosis is favorable after complete resection.	Outdated component (foundation metadata concept)
A rare monogenic primary immunodeficiency disorder with characteristics of lack of functional peripheral T lymphocytes resulting in early-onset severe respiratory infections and failure to thrive. Caused by caused by homozygous or compound heterozygous mutation in the CORO1A gene on chromosome 16p11.	Outdated component (foundation metadata concept)
A rare monogenic primary immunodeficiency disorder with characteristics of lack of functional peripheral T lymphocytes resulting in early-onset severe respiratory infections and failure to thrive. Caused by homozygous or compound heterozygous mutation in the interleukin-7 receptor gene (IL7R) on chromosome 5p13.	Outdated component (foundation metadata concept)
A rare monogenic primary immunodeficiency disorder with characteristics of lack of functional peripheral T lymphocytes resulting in early-onset severe respiratory infections and failure to thrive. Caused by homozygous or compound heterozygous mutation on the CD45 gene on chromosome 1q31.	Outdated component (foundation metadata concept)
A rare movement disorder characterised by involuntary spasmodic contractions of the inspiratory muscles synchronised with larynx closure lasting for more than 48 hours.In rare pathological cases, hiccups may last for more than two days. Recurrent episodes over long periods are also called chronic hiccup. Clinical repercussions of these episodes may include dehydration, weight loss and malnutrition due to difficulty eating, sleep disorders, depression and exhaustion.	Outdated component (foundation metadata concept)
A rare movement disorder characterized by involuntary spasmodic contractions of the inspiratory muscles synchronized with larynx closure lasting for more than 48 hours.In rare pathological cases, hiccups may last for more than two days. Recurrent episodes over long periods are also called chronic hiccup. Clinical repercussions of these episodes may include dehydration, weight loss and malnutrition due to difficulty eating, sleep disorders, depression and exhaustion.	Outdated component (foundation metadata concept)
A rare multi-systemic disease with less than 10 cases described in literature. Manifests in mid-adulthood with the development of telangiectasia mostly on the face, trunk and arms, as well as with erythrocytosis that may cause a red facies and occasionally, headaches. The increased serum erythropoietin levels precede the intrapulmonary shunting. The intrapulmonary shunts cause hypoxia which slowly progresses until the person needs continuous supplemental oxygen. Blood clots, probably due to erythrocytosis, and bleeding in the brain have also been reported in some affected individuals. Monoclonal gammopathy and perinephric fluid collections are usually found incidentally and do not seem to cause any complications. The syndrome has a slow and regular progression. The cause of TEMPI syndrome is currently unknown. The abnormal plasma-cell clone and/or the monoclonal gammopathy are suggested to be triggers of the disease.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies syndrome usually characterised by microcephaly, ocular anomalies such as microphthalmia and apple peel intestinal atresia. Facial dysmorphism is reported in some cases and may include narrow or sloped forehead, hypertelorism, microphthalmia, dysplastic oedematous deep-set eyes, short palpebral fissures, large or low set ears, broad nasal root, anteverted or broad nasal tip, long philtrum, micrognathia, thin upper vermillion, large mouth and skin tag on the cheek. Motor delay and intellectual disability have been reported. Heart, brain, craniofacial abnormalities, renal hypoplasia and other anomalies (e.g. lower limb oedema, thrombocytopenia) are variably present. Rarely cases without intestinal atresia, microcephaly or developmental delay can be found. Severe lethal cases have also been reported.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies syndrome usually characterized by microcephaly, ocular anomalies such as microphthalmia and apple peel intestinal atresia. Facial dysmorphism is reported in some cases and may include narrow or sloped forehead, hypertelorism, microphthalmia, dysplastic edematous deep-set eyes, short palpebral fissures, large or low set ears, broad nasal root, anteverted or broad nasal tip, long philtrum, micrognathia, thin upper vermillion, large mouth and skin tag on the cheek. Motor delay and intellectual disability have been reported. Heart, brain, craniofacial abnormalities, renal hypoplasia and other anomalies (e.g. lower limb edema, thrombocytopenia) are variably present. Rarely cases without intestinal atresia, microcephaly or developmental delay can be found. Severe lethal cases have also been reported.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies syndrome with cardiac involvement as a major feature with characteristics of QT prolongation, congenital heart defects, syndactyly, facial dysmorphism and neurodevelopmental features. There are three clinical phenotypes; the classical types that present with a prolonged QT interval and either with (Timothy syndrome 1) or without (Timothy syndrome 2) cutaneous syndactyly of fingers and toes. The atypical form (ATS) causes multi-system health concerns but not necessarily with prolonged QT. The disease is due to mutations in the CACNA1C gene (12p13.33). The clinical phenotypes correlate with genotype. Most cases arise de novo however in some cases the disease has been identified as an inherited autosomal dominant trait resulting from parental germline mosaicism.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies syndrome with characteristics of congenital hearing impairment, small or absent nails on the hands and feet and small or absent terminal phalanges. Caused, in some cases by heterozygous mutations in the ATP6V1B2 gene (8p21.3) encoding a vacuolar ATPase (V-ATPase) involved in protein translocation. Inheritance is autosomal dominant.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies syndrome with characteristics of craniofacial (prominent occiput and forehead, hypertelorism, ocular coloboma, cleft palate), cerebellar (Dandy-Walker malformation, cerebellar vermis hypoplasia) and cardiac (tetralogy of Fallot, atrial and ventricular septal defects) anomalies. To date less than 50 cases have been described. The exact cause is still unknown but mutations in KIAA0196 (8q24.13; coding for strumpellin) have been identified. Sporadic and familial cases have been reported. Transmission is autosomal recessive. Phenotypic variability exists between siblings.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies with intellectual disability syndrome with characteristics of infantile onset of global developmental delay, severe intellectual disability, growth deficiency, microcephaly, strabismus, blue-gray sclerae and extensive Mongolian spots. Some patients also present with epilepsy. Brain imaging may demonstrate variable abnormalities including cerebral atrophy, thin corpus callosum, ventriculomegaly or arachnoid cysts.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies with intellectual disability syndrome with characteristics of infantile onset of global developmental delay, severe intellectual disability, growth deficiency, microcephaly, strabismus, blue-grey sclerae and extensive Mongolian spots. Some patients also present with epilepsy. Brain imaging may demonstrate variable abnormalities including cerebral atrophy, thin corpus callosum, ventriculomegaly or arachnoid cysts.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of axial hypotonia after birth, prolonged feeding difficulties, moderate to severe global developmental delay, seizures (in particular absence seizures), fetal digital pads, distinctive plantar fat pads anteromedial to the heels, and deep palmar and plantar grooves. Over time, fat pads may become less prominent and disappear. Distinct craniofacial dysmorphic features include a broad face with high forehead, high anterior hairline, narrow palpebral fissures that take on a crescent moon shape when smiling, broad nasal bridge and tip with anteverted nostrils, mild midfacial hypoplasia, long smooth philtrum, thin upper lip vermillion, small, widely spaced teeth, and flat occiput/microcephaly/brachycephaly.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of congenital hydrocephalus involving the lateral ventricles, low-set umbilicus, bilateral inguinal hernia, and mild facial dysmorphism (such as epicanthal folds, broad flat nasal bridge and small bulbous nose). Additional reported manifestations include unilateral cryptorchidism, vesicoureteral reflux, and tetralogy of Fallot.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of early-onset progressive bone marrow failure with anaemia, leucopenia, mild thrombocytopenia and myelodysplastic features. There are also non-haematologic manifestations such as developmental delay, cataracts, facial dysmorphism, short stature and skeletal anomalies. Immunodeficiency primarily affects B-cells and may lead to increased susceptibility to infections. Additional reported features include dry skin and eczema, cardiac anomalies, hearing loss and reduction of cerebral volume on brain imaging.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of early-onset progressive bone marrow failure with anemia, leukopenia, mild thrombocytopenia and myelodysplastic features. There are also non-hematologic manifestations such as developmental delay, cataracts, facial dysmorphism, short stature and skeletal anomalies. Immunodeficiency primarily affects B-cells and may lead to increased susceptibility to infections. Additional reported features include dry skin and eczema, cardiac anomalies, hearing loss and reduction of cerebral volume on brain imaging.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of global developmental delay or regression, variable congenital heart defects (such as patent ductus arteriosus, atrial or ventricular septal defects, and double outlet right ventricle, among others), dysmorphic features (including ptosis, epicanthal folds, abnormally set/dysplastic ears, low hairline or excess nuchal skin, wide-spaced/inverted nipples, umbilical hernia or diastasis recti, and digital anomalies). Additional variable manifestations are hyper or hypotonia, seizures, hearing loss, cortical blindness and optic atrophy. Brain imaging may show cerebral and cerebellar atrophy and hydrocephalus.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of global developmental delay, intellectual disability, growth retardation, hearing impairment, characteristic facial dysmorphology (including prominent supraorbital ridges, downslanting palpebral fissures, deep-set eyes, long face, sagging cheeks, anteverted nares, and pointed chin), generalised hypotonia, joint hypermobility, gluteal crease with sacral caudal remnant and sacral dimple, and variable neurological features. Various ophthalmic, cutaneous, musculoskeletal, gastrointestinal and cardiovascular anomalies have also been described. The disorder is caused by pathogenic mutations in the TAF1 gene (Xq13.1). The pattern of inheritance is X-linked.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of global developmental delay, intellectual disability, growth retardation, hearing impairment, characteristic facial dysmorphology (including prominent supraorbital ridges, downslanting palpebral fissures, deep-set eyes, long face, sagging cheeks, anteverted nares, and pointed chin), generalized hypotonia, joint hypermobility, gluteal crease with sacral caudal remnant and sacral dimple, and variable neurological features. Various ophthalmic, cutaneous, musculoskeletal, gastrointestinal and cardiovascular anomalies have also been described. The disorder is caused by pathogenic mutations in the TAF1 gene (Xq13.1). The pattern of inheritance is X-linked.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of large omphalocele containing liver and small intestine, diaphragmatic hernia, cardiovascular anomalies (e. g. aortic coarctation), variable limb malformations (including radioulnar synostosis, agenesis of the radius and/or thumb, generalised syndactyly, and numerical reduction of toes), and dysmorphic facial features. Additional reported manifestations are unilateral absence of umbilical artery, intestinal malrotation, hypoplastic ovaries, and unilateral renal agenesis, among others. The condition is mostly fatal in the neonatal period.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of large omphalocele containing liver and small intestine, diaphragmatic hernia, cardiovascular anomalies (e. g. aortic coarctation), variable limb malformations (including radioulnar synostosis, agenesis of the radius and/or thumb, generalized syndactyly, and numerical reduction of toes), and dysmorphic facial features. Additional reported manifestations are unilateral absence of umbilical artery, intestinal malrotation, hypoplastic ovaries, and unilateral renal agenesis, among others. The condition is mostly fatal in the neonatal period.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of moderate to severe intellectual disability, neurologic signs and symptoms (such as seizures, spasticity, strabismus), characteristic dysmorphic facial features (including broad forehead, hypertelorism, downslanting palpebral fissures, broad and flat nasal bridge, midline notch of upper lip, lack of upper central incisors, incomplete oral cleft, and prominent mandible), and acne scars. Hearing impairment, pseudo-bulbar palsy, growth retardation, and skeletal anomalies (camptodactyly, clinodactyly, bilateral cubitus valgus, pes cavus/planus) has also been described.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with characteristics of profound intellectual disability, choreoathetosis, progressive spastic diplegia, progressive tapetoretinal degeneration with loss of retinal vessels and glomerulopathy resulting in death late in the first or early in the second decade of life. Absence of the cerebellar granular layer has been reported.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability and with characteristics of severe congenital contractures of the limbs and face, hypotonia, neonatal respiratory distress, and global developmental delay. Dysmorphic facial features include downslanting palpebral fissures, broad nasal bridge, large nares, long philtrum, and deep nasolabial folds among others. Limb deformities (camptodactyly, clubfoot), short neck, scoliosis as well as seizures have also been reported. Brain MRI may show cerebral and cerebellar atrophy in some cases.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterised by global developmental delay, intellectual disability, macrothrombocytopenia, lymphoedema, and dysmorphic facial features (for example synophrys, ptosis, eversion of the lateral portion of the lower eyelid, thin upper lip). Additional reported manifestations include cardiac and genitourinary anomalies, sensorineural hearing loss, ophthalmologic abnormalities, skeletal anomalies and immunodeficiency. Brain imaging may show enlarged ventricles, cerebellar atrophy or white matter changes.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterised by mild global developmental delay, intellectual disability or learning difficulties, behavioural problems (like autistic, hyperactive, or aggressive behaviour), variable dysmorphic craniofacial features and abnormalities of the fingers (brachydactyly, tapering fingers, prominent interphalangeal joints). Additional manifestations are highly variable and include recurrent infections and skeletal anomalies among others.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterized by global developmental delay, intellectual disability, macrothrombocytopenia, lymphedema, and dysmorphic facial features (for example synophrys, ptosis, eversion of the lateral portion of the lower eyelid, thin upper lip). Additional reported manifestations include cardiac and genitourinary anomalies, sensorineural hearing loss, ophthalmologic abnormalities, skeletal anomalies and immunodeficiency. Brain imaging may show enlarged ventricles, cerebellar atrophy or white matter changes.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterized by mild global developmental delay, intellectual disability or learning difficulties, behavioral problems (like autistic, hyperactive, or aggressive behavior), variable dysmorphic craniofacial features and abnormalities of the fingers (brachydactyly, tapering fingers, prominent interphalangeal joints). Additional manifestations are highly variable and include recurrent infections and skeletal anomalies among others.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability with characteristics of global developmental delay, postnatal microcephaly, intellectual disability, ataxia, sensorineural hearing loss and exocrine pancreatic insufficiency. More variable manifestations include hypotonia, growth retardation, peripheral demyelinating neuropathy, dysmorphic facial features and additional endocrine abnormalities. Brain imaging may show progressive cerebellar atrophy in some patients.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability, with characteristics of macrocephaly, intellectual disability, seizures, dysmorphic facial features (including tall forehead, downslanting palpebral fissures, hypertelorism, depressed nasal bridge and macrostomia), megalencephaly and small thorax. Other reported features are umbilical hernia, muscular hypotonia, global developmental delay, autistic behavior and cafe-au-lait spots among others.	Outdated component (foundation metadata concept)
A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability, with characteristics of macrocephaly, intellectual disability, seizures, dysmorphic facial features (including tall forehead, downslanting palpebral fissures, hypertelorism, depressed nasal bridge and macrostomia), megalencephaly and small thorax. Other reported features are umbilical hernia, muscular hypotonia, global developmental delay, autistic behaviour and cafe-au-lait spots among others.	Outdated component (foundation metadata concept)
A rare multiple congenital anomaly syndrome mainly occurring in the Middle East and the Arabian Gulf countries, with characteristics of intrauterine growth restriction at birth, microcephaly, congenital hypoparathyroidism, severe growth retardation, typical facial features (long narrow face, deep-set eyes, beaked nose, floppy and large ears, long philtrum, thin lips and micrognathia) and mild to moderate intellectual deficiency. Ocular findings (i.e. nanophthalmos, retinal vascular tortuosity and corneal opacification/clouding) and superior mesenteric artery syndrome have also been reported.	Outdated component (foundation metadata concept)
A rare multiple congenital anomaly/intellectual disability syndrome characterised by trigonocephaly and metopic suture synostosis, dysmorphic facial features, short neck, skeletal anomalies, and variable intellectual disability. The aetiology of C syndrome is still unknown. Although most of the reported patients are sporadic, rare cases of familial occurrence have been described.	Outdated component (foundation metadata concept)
A rare multiple congenital anomaly/intellectual disability syndrome characterized by trigonocephaly and metopic suture synostosis, dysmorphic facial features, short neck, skeletal anomalies, and variable intellectual disability. The etiology of C syndrome is still unknown. Although most of the reported patients are sporadic, rare cases of familial occurrence have been described.	Outdated component (foundation metadata concept)
A rare multiple sclerosis (MS) variant with characteristics of the onset of one or multiple episodes of clinical central nervous system (CNS) symptoms consistent with acquired CNS demyelination, with radiologically proven dissemination of inflammatory lesions in space and time, following exclusion of other disorders before the age of 18 years old. Patients present a predominantly relapsing-remitting course with the first attack usually consisting of optic neuritis, transverse myelitis, acute disseminated encephalomyelitis and monofocal or polyfocal neurological deficits. A high burden of T2-hyperintense lesions on initial MRI, primarily of the supratentorial region and/or of the cervical spinal cord has been reported.	Outdated component (foundation metadata concept)
A rare mycosis caused by Scedosporium species, with characteristics of disparate disease pictures including pneumonia, skin and soft tissue infection, mycetoma, and disseminated infection. Central nervous system infection has also been reported. Infections with this ubiquitous mold can occur in a range of contexts like solid organ transplantation, chemotherapy, chronic lung disease, but also in immunocompetent hosts and near drowning.	Outdated component (foundation metadata concept)
A rare mycosis caused by Scedosporium species, with characteristics of disparate disease pictures including pneumonia, skin and soft tissue infection, mycetoma, and disseminated infection. Central nervous system infection has also been reported. Infections with this ubiquitous mould can occur in a range of contexts like solid organ transplantation, chemotherapy, chronic lung disease, but also in immunocompetent hosts and near drowning.	Outdated component (foundation metadata concept)
A rare neoplastic disease characterised by occurrence of atypical and aggressive gastric type 1 neuroendocrine tumours (NET) in early adulthood. The tumours often show nodal infiltration requiring total gastrectomy. Synchronous gastric adenocarcinoma has also been reported. Patients present high serum gastrin concentrations and iron-deficiency anaemia rather than megaloblastic anaemia, which is a typical feature in patients with sporadic gastric type 1 NET where the tumour usually arises on the background of autoimmune atrophic gastritis.	Outdated component (foundation metadata concept)
A rare neoplastic disease characterized by occurrence of atypical and aggressive gastric type 1 neuroendocrine tumors (NET) in early adulthood. The tumors often show nodal infiltration requiring total gastrectomy. Synchronous gastric adenocarcinoma has also been reported. Patients present high serum gastrin concentrations and iron-deficiency anemia rather than megaloblastic anemia, which is a typical feature in patients with sporadic gastric type 1 NET where the tumor usually arises on the background of autoimmune atrophic gastritis.	Outdated component (foundation metadata concept)
A rare neoplastic disorder characterised by benign metastatic masses increasing in size and number after chemotherapy for non-seminomatous germ cell tumours of testis or ovary. It may present at any time after chemotherapy, with a median occurrence within 24 months after treatment completion. Per definition, the resected specimen exclusively contains mature teratoma components, and serum tumour markers have normalised. The retroperitoneum is the most common site, although almost any other localisation has been reported. Increased tumour size may cause mechanical compression of vital organs, with renal dysfunction, bowel ischaemia and biliary obstruction as major complications.	Outdated component (foundation metadata concept)
A rare neoplastic disorder characterized by benign metastatic masses increasing in size and number after chemotherapy for non-seminomatous germ cell tumors of testis or ovary. It may present at any time after chemotherapy, with a median occurrence within 24 months after treatment completion. Per definition, the resected specimen exclusively contains mature teratoma components, and serum tumor markers have normalized. The retroperitoneum is the most common site, although almost any other localization has been reported. Increased tumor size may cause mechanical compression of vital organs, with renal dysfunction, bowel ischemia and biliary obstruction as major complications.	Outdated component (foundation metadata concept)
A rare neoplastic gastroenterologic disease most often found in children, which usually presents with the non-specific symptoms of a palpable mass, vomiting, abdominal pain, jaundice, and weight loss/failure to thrive. Histologically, this malignant epithelial pancreatic neoplasm of the exocrine cells has multiple lines of differentiation (acinar, ductal, mesenchymal, neuroendocrine) and the presence of squamoid nests. Pancreatoblastoma can occur in any part of the pancreas. It is a malignant embryonal neoplasm that seems to recapitulate the embryogenesis of the pancreas, presumably because it originates from the pluripotent pancreatic stem cells during foregut development.	Outdated component (foundation metadata concept)
A rare neural tube closure defect characterised by an abnormally low lying conus which is tethered by a lumbosacral lipomatous mass (containing fatty tissue, nerve fibres, meningeal strands and fibrous bands) which engulfs the filum terminale and varying numbers of dorsal and ventral nerve root components, typically producing sensory, motor, bowel and/or bladder dysfunction. Cutaneous stigmata, absent or reduced reflexes and foot deformities (for example talipes cavovalgus) are frequently present.	Outdated component (foundation metadata concept)
A rare neural tube closure defect characterized by an abnormally low lying conus which is tethered by a lumbosacral lipomatous mass (containing fatty tissue, nerve fibers, meningeal strands and fibrous bands) which engulfs the filum terminale and varying numbers of dorsal and ventral nerve root components, typically producing sensory, motor, bowel and/or bladder dysfunction. Cutaneous stigmata, absent or reduced reflexes and foot deformities (for example talipes cavovalgus) are frequently present.	Outdated component (foundation metadata concept)
A rare neuro inflammatory/neuro autoimmune disease with characteristics of acute (or subacute) onset of disturbance of consciousness (occasionally presenting as convulsions) and high fever associated with cerebral lesions (on magnetic resonance imaging) that are restricted to the limbic system (particularly the hippocampi and amygdalae), in the absence of viral, bacterial, fungal, paraneoplastic and other disorders.	Outdated component (foundation metadata concept)
A rare neurodegenerative disease caused by homozygous mutations in the PCNA gene and with characteristics of neurodegeneration, postnatal growth retardation, prelingual sensorineural hearing loss, premature aging, ocular and cutaneous telangiectasia, learning difficulties, photophobia and photosensitivity with evidence of predisposition to sun-induced malignancy. Progressive neurologic deterioration leads to gait disturbances, muscle weakness, speech and swallowing difficulties and progressive cognitive decline.	Outdated component (foundation metadata concept)
A rare neurodegenerative disease with characteristics of progressive dementia and ataxia, widespread cerebral amyloid angiopathy and parenchymal amyloid deposition. Two subtypes have been identified, ABri amyloidosis and ADan amyloidosis.	Outdated component (foundation metadata concept)
A rare neuroendocrine tumor of pancreas characterized by a well-differentiated epithelial pancreatic neuroendocrine neoplasm measuring at least 0.5 cm, without distinct hormonal syndrome. Tumors less than 0.5 cm are called microadenomas. Microadenomatosis is the multifocal occurrence of microadenomas. Histopathologic examination shows an organoid growth pattern and expression of synaptophysin and chromogranin A on immunohistochemistry. Tumors are often discovered incidentally, or patients may present with symptoms related to local or metastatic tumor spread. Microadenomas are considered benign, while larger tumors may behave in a malignant manner with extrapancreatic spread, metastasis, or recurrence.	Outdated component (foundation metadata concept)
A rare neuroendocrine tumour of pancreas characterised by a well-differentiated epithelial pancreatic neuroendocrine neoplasm measuring at least 0.5 cm, without distinct hormonal syndrome. Tumours less than 0.5 cm are called microadenomas. Microadenomatosis is the multifocal occurrence of microadenomas. Histopathologic examination shows an organoid growth pattern and expression of synaptophysin and chromogranin A on immunohistochemistry. Tumours are often discovered incidentally, or patients may present with symptoms related to local or metastatic tumour spread. Microadenomas are considered benign, while larger tumours may behave in a malignant manner with extrapancreatic spread, metastasis, or recurrence.	Outdated component (foundation metadata concept)
A rare neuroimmunological disorder characterised by the onset of cognitive decline, psychiatric disturbances and seizures (distinctively faciobrachial dystonic seizures) in association with detection of LGI1 antibodies in serum or cerebrospinal fluid. Patients may present with confusion, hallucinations, vocalisation, paranoia, tangentiality, aggressive outbursts and/or spatial disorientation, as well as obstinate hyponatraemia. It is most often non-paraneoplastic, however comorbid tumours, such as small cell lung cancer and thymoma, have been reported.	Outdated component (foundation metadata concept)
A rare neuroimmunological disorder characterized by the onset of cognitive decline, psychiatric disturbances and seizures (distinctively faciobrachial dystonic seizures) in association with detection of LGI1 antibodies in serum or cerebrospinal fluid. Patients may present with confusion, hallucinations, vocalization, paranoia, tangentiality, aggressive outbursts and/or spatial disorientation, as well as obstinate hyponatremia. It is most often non-paraneoplastic, however comorbid tumors, such as small cell lung cancer and thymoma, have been reported.	Outdated component (foundation metadata concept)
A rare neuroimmunological disorder with the onset of cognitive deficits, psychiatric disturbances (e.g. personality changes), seizures, peripheral nerve hyperexcitability, dysautonomia, neuropathic pain, insomnia and weight loss, in association with detection of caspr2 antibodies in serum or cerebrospinal fluid, with or without underlying malignancies. Other features reported include blepharoclonus, myoclonic status epilepticus, and dyskinesia.	Outdated component (foundation metadata concept)
A rare neurologic disease characterised by an early onset of positive and negative symptoms of psychosis that impact development and cognitive functioning. Clinical manifestations commonly include premorbid features of autism spectrum disorders, attention deficits, neurodevelopmental delays, and behavioural abnormalities. After the onset of psychotic symptoms, other comorbidities are also common, including obsessive-compulsive disorder, major depressive disorder, attention deficit hyperactivity disorder, expressive and receptive language disorders, auditory processing deficits and executive functioning deficits.	Outdated component (foundation metadata concept)
A rare neurologic disease characterised by lethargy, hypotonia, poor feeding, opisthotonus and a typical high-pitched cry due to bilirubin accumulation in the globus pallidus, sub-thalamic nuclei, and other brain regions, resulting from severe neonatal unconjugated hyperbilirubinaemia. Onset of symptoms is typically within the first three to five days of life. Additional features include fever, apnoea, seizures and coma. Respiratory failure or refractory seizures may lead to a fatal outcome.	Outdated component (foundation metadata concept)
A rare neurologic disease characterized by an early onset of positive and negative symptoms of psychosis that impact development and cognitive functioning. Clinical manifestations commonly include premorbid features of autism spectrum disorders, attention deficits, neurodevelopmental delays, and behavioral abnormalities. After the onset of psychotic symptoms, other comorbidities are also common, including obsessive-compulsive disorder, major depressive disorder, attention deficit hyperactivity disorder, expressive and receptive language disorders, auditory processing deficits and executive functioning deficits.	Outdated component (foundation metadata concept)
A rare neurologic disease characterized by lethargy, hypotonia, poor feeding, opisthotonus and a typical high-pitched cry due to bilirubin accumulation in the globus pallidus, sub-thalamic nuclei, and other brain regions, resulting from severe neonatal unconjugated hyperbilirubinemia. Onset of symptoms is typically within the first three to five days of life. Additional features include fever, apnea, seizures and coma. Respiratory failure or refractory seizures may lead to a fatal outcome.	Outdated component (foundation metadata concept)
A rare neurologic disease with characteristics of axonal sensorimotor neuropathy, progressive optic atrophy, cognitive deficit, bulbar dysfunction, seizures, early hypotonia and feeding difficulties. Additional possible features include dystonia, scoliosis, joint contractures, ocular anomalies and urogenital anomalies. Brain MRI reveals variable degrees of cerebral atrophy. The disease is fatal in childhood due to respiratory failure.	Outdated component (foundation metadata concept)
A rare neurologic disease with characteristics of multifaceted motor system dysfunctions and cognitive defects such as asymmetric rigidity, bradykinesia, limb apraxia and visuospatial dysfunction. The disease shows a wide clinical variability between patients with many developing a relatively pure motor syndrome, and others displaying a combination of motor and cognitive deficits.	Outdated component (foundation metadata concept)
A rare neurologic disease with characteristics of the chronic consequences of bilirubin toxicity in the globus pallidus, sub-thalamic nuclei and other brain regions, after exposure to high levels of unconjugated bilirubin in the neonatal period. Symptoms begin after the acute phase of bilirubin encephalopathy in the first year of life, evolve slowly over several years, and include mild to severe extrapyramidal disturbances (especially dystonia and athetosis), auditory neuropathy spectrum disorder and oculomotor and dental abnormalities.	Outdated component (foundation metadata concept)
A rare neurologic disease with characteristics of the presence of Duane retraction syndrome (i.e. a congenital cranial dysinnervation disorder with unilateral or bilateral limitation of abduction and/or adduction of the eye, as well as globe retraction and palpebral fissure narrowing on attempted adduction) in combination with congenital unilateral or bilateral hearing loss. The sidedness of hearing loss corresponds to the sidedness of the retraction syndrome.	Outdated component (foundation metadata concept)
A rare neurologic disease with the manifestation of an underlying psychiatric illness that cannot be attributed to any known structural or neurochemical disease. The disease presents typically during adolescence or adulthood. Symptoms may include one or several types of abnormal movements seen in organic movement disorders (tremor, dystonia, chorea, bradykinesia, myoclonus, tics, athetosis, ballism, cerebellar incoordination) and also affect speech and gait. Underlying causes fall into three categories: Conversion disorder, somatic symptom disorders or in rare cases factitious disorder.	Outdated component (foundation metadata concept)
A rare neurological condition with manifestation of seizures during the first year of life and choreoathetotic dyskinetic attacks during childhood or adolescence. Benign familial infantile epilepsy begins at 3 to 12 months of age with a family history of the same type of seizures. Seizures are afebrile and normally disappear after the first year of life. During childhood or adolescence, affected individuals present with paroxysmal kinesigenic dyskinesia with frequent and recurrent episodic choreathetotic or dystonic movements that last less than 1 minute. Can present as sporadic or familial, in the latter case, it is transmitted as an autosomal dominant trait that can be variably expressed within the same family.	Outdated component (foundation metadata concept)
A rare neurological disorder with characteristics of reduced head circumference at birth with no gross anomalies of brain structure. It can be an isolated finding or it can be associated with seizures, developmental delay, intellectual disability, balance disturbances, hearing loss or vision problems.	Outdated component (foundation metadata concept)
A rare neurological mitochondrial DNA-related disorder characterised clinically by progressive paediatric-onset dystonia with variable degrees of severity.	Outdated component (foundation metadata concept)

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Reference Sets

Reference set descriptor

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Id	Description	Lang	Type	Status	Case?	Module
900000000001069012	Description inactivation indicator attribute value reference set	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT model component module (core metadata concept)
900000000001070013	Description inactivation indicator reference set	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT model component module (core metadata concept)
900000000001071012	Description inactivation indicator attribute value reference set (foundation metadata concept)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT model component module (core metadata concept)