| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Hydromicrocephaly | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Congenital hypoplasia of brain | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Cystic malformation of posterior fossa (disorder) | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Hypogonadism with anosmia | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Congenital brain aplasia (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Aqueduct of Sylvius anomaly | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Cerebrofacial dysplasia | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Kundrat's syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Alobar holoprosencephaly | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Dysgenesis of the brainstem | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Colpocephaly | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephaly, microphthalmia, ectrodactyly of lower limbs and prognathism syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Autosomal recessive primary microcephaly (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| 3C syndrome | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Radioulnar synostosis with microcephaly and scoliosis syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus with albinism and digital anomaly syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus with brachydactyly and kyphoscoliosis syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus with cardiac defect and lung malsegmentation syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus cardiomyopathy syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus cleft palate syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Hadziselimovic syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus and intellectual disability with phalangeal and neurological anomaly syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Anonychia with microcephaly syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Aphalangy and syndactyly with microcephaly syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Filippi syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Hall Riggs syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Goldberg Shprintzen megacolon syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Brain malformation, congenital heart disease, postaxial polydactyly syndrome (disorder) | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephaly, hypogammaglobulinemia, abnormal immunity syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Lowry MacLean syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Congenital cerebral ventriculomegaly (disorder) | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Epiphyseal dysplasia, microcephalus, nystagmus syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Oculopalatocerebral syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Oculocerebrofacial syndrome Kaufman type (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Congenital intrauterine infection-like syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Cutaneous mastocytosis, short stature, hearing loss syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Severe X-linked intellectual disability Gustavson type (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Agammaglobulinemia, microcephaly, craniosynostosis, severe dermatitis syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephaly, seizure, intellectual disability, heart disease syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalic osteodysplastic dysplasia Saul Wilson type (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Renier Gabreels Jasper syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalic primordial dwarfism of Toriello type (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalic primordial dwarfism due to zinc finger protein 335 deficiency (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Hypomyelinating leukodystrophy with atrophy of basal ganglia and cerebellum (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalic osteodysplastic primordial dwarfism types I and III (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Epilepsy, microcephaly, skeletal dysplasia syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Stimmler syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus, glomerulonephritis, marfanoid habitus syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Pseudoprogeria syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus, digital anomaly, intellectual disability syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus, hypergonadotropic hypogonadism, short stature syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus, lymphedema, chorioretinopathy syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| 3-phosphoglycerate dehydrogenase deficiency infantile form (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Deficiency of leukotriene C4 synthase (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Cleft palate, large ears, small head syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Intellectual disability, obesity, brain malformation, facial dysmorphism syndrome | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus, complex motor and sensory axonal neuropathy syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Oro-facial digital syndrome type 14 | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalic primordial dwarfism Montreal type | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Nijmegen breakage syndrome-like disorder (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalic primordial dwarfism Alazami type (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Autosomal recessive chorioretinopathy and microcephaly syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalic primordial dwarfism Dauber type | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephalus, brain defect, spasticity, hypernatremia syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Extrasystoles, short stature, hyperpigmentation, microcephaly syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephaly, short stature, intellectual disability, facial dysmorphism syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| X-linked colobomatous microphthalmia, microcephaly, intellectual disability, short stature syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Severe neonatal onset encephalopathy with microcephaly (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Communicating hydrocephalus co-occurrent and due to congenital agenesis of arachnoid villi (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Congenital porencephalic cyst (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephaly with deafness and intellectual disability syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Hypotonia, speech impairment, severe cognitive delay syndrome (disorder) | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Myelomeningocele co-occurrent with hydrocephalus (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Spina bifida with hydrocephalus | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| THOC6-related developmental delay-microcephaly-facial dysmorphism syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Intellectual disability, feeding difficulties, developmental delay, microcephaly syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Hypogonadotropic hypogonadism, severe microcephaly, sensorineural hearing loss, dysmorphism syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Autosomal dominant primary microcephaly | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Hydrocephalus with endocardial fibroelastosis and cataract syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Cavernous hemangioma of brain (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Primary microcephaly, mild intellectual disability, young-onset diabetes syndrome (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Primary microcephaly, epilepsy, permanent neonatal diabetes syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Congenital microcephaly, severe encephalopathy, progressive cerebral atrophy syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Diffuse cerebral and cerebellar atrophy, intractable seizures, progressive microcephaly syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Congenital anomaly of cerebrum (disorder) | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Muscle eye brain disease with bilateral multicystic leukodystrophy | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Vein of Galen malformation (disorder) | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Congenital athetosis | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Seckel syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| FOXG1 syndrome | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephaly-capillary malformation syndrome | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Hereditary cavernous hemangioma of brain (disorder) | Is a | False | Congenital anomaly of brain | Inferred relationship | Some |  | 
| RAB18, member RAS oncogene family deficiency (disorder) | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Lowe syndrome | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Microcephaly with simplified gyral pattern | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Congenital microencephaly (disorder) | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Neurodevelopmental disorder, craniofacial dysmorphism, cardiac defect, skeletal anomalies syndrome (disorder) | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Lethal fetal brain malformation, duodenal atresia, bilateral renal hypoplasia syndrome | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  | 
| Epilepsy due to congenital anomaly of brain (disorder) | Due to | True | Congenital anomaly of brain | Inferred relationship | Some | 2 | 
| Alkuraya Kucinskas syndrome | Is a | True | Congenital anomaly of brain | Inferred relationship | Some |  |