| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Femoral hypoplasia - unusual facies syndrome | Is a | False | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Child syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Holt-Oram syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Multiple malformation syndrome with facial-limb defects as major feature | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Levy-Hollister syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Nievergelt's syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Adams-Oliver syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Poland anomaly | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Popliteal pterygium syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Limb reduction-ichthyosis syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Aase syndrome | Is a | False | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Grebe syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Escobar syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Polysyndactyly syndrome | Is a | False | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Radial aplasia-thrombocytopenia syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Popliteal web syndrome | Is a | False | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| RAPADILINO syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Ophthalmo-acromelic syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Rhizomelic dysplasia of Patterson Lowry type | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Aplasia of fibula co-occurrent with complex brachydactyly | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Limb body wall complex | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Upper limb defect with eye and ear abnormalities syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Spondylocamptodactyly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Intellectual disability and short stature with hand contracture and genital anomaly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Hypoplasia of corpus callosum, intellectual disability, adducted thumbs, spasticity, hydrocephalus syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Absence deformity of leg and congenital cataract syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Mammary digital nail syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| WT limb blood syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| DK phocomelia syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Radioulnar synostosis with microcephaly and scoliosis syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Stapes ankylosis with broad thumb and toe syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Absent thumb with short stature and immunodeficiency syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Acropectoral syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Acropectororenal dysplasia | Is a | False | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Acrorenoocular syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Acropectorovertebral dysplasia | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Acrorenal syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Campomelia Cumming type | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Camptodactyly and tall stature with scoliosis and hearing loss syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Camptodactyly syndrome Guadalajara type 2 | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Acro-dermato-ungual-lacrimal-tooth syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Aniridia and absent patella syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Aphalangy and syndactyly with microcephaly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Syndactyly type 7 | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Cooks syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Capra DeMarco syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Craniosynostosis Philadelphia type | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Curry Jones syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Ectodermal dysplasia with ectrodactyly and macular dystrophy syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Fibular dimelia diplopodia syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Angel-shaped phalangoepiphyseal dysplasia | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Heart defect and limb shortening syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Heart-hand syndrome type 2 | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Heart-hand syndrome type 3 | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Heart-hand syndrome Slovenian type | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Postaxial polydactyly and intellectual disability syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Short fifth metacarpal insulin resistance syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Aplasia of fibula and ectrodactyly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Coloboma of macula with brachydactyly type B syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Hirschsprung disease with deafness and polydactyly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Hirschsprung disease with type D brachydactyly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Congenital microgastria with limb reduction defect syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Persistent Mullerian derivative with lymphangiectasia and polydactyly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Lung agenesis with heart defect and thumb anomaly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Karsch Neugebauer syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Oculootoradial syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Ballard syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Catel Manzke syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Preaxial deficiency, postaxial polydactyly, hypospadias syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Fuhrmann syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Macular coloboma, cleft palate, hallux valgus syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Multinodular goiter, cystic kidney, polydactyly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Pterygia, heart anomaly, autosomal recessive inheritance, vertebral defect, ear anomaly, radial defect syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Split hand, split foot malformation with sensorineural hearing loss syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Severe intellectual disability, epilepsy, anal anomaly, distal phalangeal hypoplasia syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Cryptomicrotia brachydactyly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Temple Baraitser syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| 5-amino-4-imidazole carboxamide ribosiduria | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Paraplegia, brachydactyly, cone-shaped epiphysis syndrome | Is a | False | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Caudal appendage deafness syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Craniosynostosis fibular aplasia syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Split hand, obstructive uropathy, spina bifida, diaphragmatic defect syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Symphalangism with multiple anomalies of hands and feet syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Brachydactyly and distal symphalangism syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Brachydactyly and preaxial hallux varus syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Congenital hypoplasia of ulna and split foot syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Camptobrachydactyly | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Osteosarcoma, limb anomalies, erythroid macrocytosis syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Absent tibia, polydactyly, arachnoid cyst syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Banki syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Triphalangeal thumb and dislocation of patella syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Camptodactyly taurinuria syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Long thumb brachydactyly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Polydactyly myopia syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Preaxial polydactyly, colobomata, intellectual disability syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Microcephalus, digital anomaly, intellectual disability syndrome | Is a | False | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Dandy-Walker malformation with postaxial polydactyly syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Thumb stiffness, brachydactyly, intellectual disability syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Aphalangy, hemivertebra, urogenital, intestinal dysgenesis syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| Atrioventricular septal defect, blepharophimosis, radial and anal defect syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  | 
| X-linked lethal multiple pterygium syndrome | Is a | True | Multiple malformation syndrome with limb defect as major feature | Inferred relationship | Existential restriction modifier |  |