| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Coffin-Siris syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Osteochondrodysplasia syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Laurence-Moon syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Ochoa syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Leprechaunism syndrome | Is a | False | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Pentalogy of Cantrell | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Multiple malformation syndrome with senile-like appearance | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Borjeson-Forssman-Lehmann syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Kundrat's syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Arteriohepatic dysplasia | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Hanhart's syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Multiple malformation syndrome with limb defect as major feature | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Multiple malformation syndrome, small stature, without skeletal dysplasia (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Rieger syndrome | Is a | False | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Multiple malformation syndrome with early overgrowth | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Duhamel's syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Cerebro-costo-mandibular syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Bardet-Biedl syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Multiple malformation syndrome due to non-infectious environmental agents | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Jarcho-Levin syndrome | Is a | False | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Multiple malformation syndrome with unusual brain and/or neuromuscular findings | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Multiple malformation syndrome with facial defects as major feature | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| VACTEL syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Moore-Federman syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Johanson-Blizzard syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Multiple malformation syndrome, moderate short stature, facial | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Mulibrey nanism syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Distichiasis-lymphedema syndrome | Is a | False | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Aglossia-adactyly syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Smith-Magenis syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Vertebral abnormalities, anal atresia, cardiac abnormalities, tracheo-esophageal fistula, renal anomalies, limb defects syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Shprintzen syndrome | Is a | False | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Myhre syndrome | Is a | False | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Oculofaciocardiodental syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Genitopatellar syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Hydrometrocolpos, postaxial polydactyly, and congenital heart malformation (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Manitoba oculotrichoanal syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Phocomelia, ectrodactyly, deafness and sinus arrhythmia syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Trigonocephaly C syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Odontoma dysphagia syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Pili torti with developmental delay and neurological abnormality syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Tetraamelia with multiple malformation syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Abruzzo Erickson syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| X-linked intellectual disability Stocco Dos Santos type (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Vertebral abnormality, anal atresia, cardiac abnormality, tracheo-esophageal fistula, renal anomaly, limb defect syndrome with hydrocephalus (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Microcephalus with cardiac defect and lung malsegmentation syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Microcephalus cardiomyopathy syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Uveal coloboma with cleft lip and palate and intellectual disability syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Disorder of sex development with intellectual disability syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Cleft palate with stapes fixation and oligodontia syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| X-linked intellectual disability Cabezas type (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Vici syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Taurodontia with absent teeth and sparse hair syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Haim Munk syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Timothy syndrome type 1 (disorder) | Is a | False | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Timothy syndrome type 2 (disorder) | Is a | False | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Cardiocranial syndrome Pfeiffer type (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Cardiospondylocarpofacial syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Anonychia with microcephaly syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Anophthalmia and megalocornea with cardiopathy and skeletal anomalies syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Aplasia cutis with myopia syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Arthrogryposis with renal dysfunction and cholestasis syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Bosley Salih Alorainy syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Braddock syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Brain calcification Rajab type (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Cerebellar ataxia, areflexia, pes cavus, optic atrophy, sensorineural hearing loss syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Cholestasis with pigmentary retinopathy and cleft palate syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Aural atresia with multiple congenital anomalies and intellectual disability syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Craniofacial ulnar renal syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Craniosynostosis, anal anomaly, porokeratosis syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Chondrodysplasia with disorder of sex development syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Cervical hypertrichosis and peripheral neuropathy syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Aniridia, ptosis, intellectual disability, familial obesity syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Hair defect with photosensitivity and intellectual disability syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Lymphedema hypoparathyroidism syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Deaf blind hypopigmentation syndrome Yemenite type (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Developmental malformation, deafness, dystonia syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Diaphanospondylodysostosis (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Diaphragmatic defect, limb deficiency, skull defect syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Siegler Brewer Carey syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Branchiogenic deafness syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Hirschsprung disease with nail hypoplasia and dysmorphism (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Hydrocephalus, costovertebral dysplasia, Sprengel anomaly syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Hydrocephalus with obesity and hypogonadism syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Biemond's syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Biemond syndrome type 2 (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Bilateral microtia with deafness and cleft palate syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| BRESEK syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Lipodystrophy, intellectual disability, deafness syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Lowry MacLean syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Deafness, onychodystrophy, osteodystrophy, intellectual disability syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Megalencephaly, polymicrogyria, postaxial polydactyly, hydrocephalus syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| MEHMO syndrome | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Hypogonadism with anosmia | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Johnson neuroectodermal syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Oculopalatocerebral syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Bamforth Lazarus syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Congenital cataract with deafness and hypogonadism syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Congenital cataract with hypertrichosis and intellectual disability syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Congenital cataract with intellectual disability and hypogonadotropic hypogonadism syndrome (disorder) | Is a | False | Multiple system malformation syndrome | Inferred relationship | Some |  | 
| Congenital cataract, nephropathy, encephalopathy syndrome (disorder) | Is a | True | Multiple system malformation syndrome | Inferred relationship | Some |  |