| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Short rib polydactyly syndrome Saldino Noonan type | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 8 | 
| Cortical blindness, intellectual disability, polydactyly syndrome | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 5 | 
| Absent tibia, polydactyly, arachnoid cyst syndrome | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 3 | 
| Absent tibia, polydactyly, arachnoid cyst syndrome | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 4 | 
| Say Field Coldwell syndrome | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 2 | 
| Polydactyly myopia syndrome | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 2 | 
| Preaxial polydactyly, colobomata, intellectual disability syndrome | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 3 | 
| Dandy-Walker malformation with postaxial polydactyly syndrome | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 7 | 
| Preaxial polydactyly, colobomata, intellectual disability syndrome | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 2 | 
| Accessory lobe of lung | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Polyorchism | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Mesiodens | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Azygos lobe of lung | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory breast | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory nose | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory carpal bones | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Torsion of accessory fallopian tube | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 2 | 
| Accessory broad ligament | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary cusps of mitral valve | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 3 | 
| Accessory thymic tissue | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory tragus of ear | Associated morphology | False | Supernumerary structure | Inferred relationship | Some |  | 
| Accessory kidney | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Polyotia | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory ovary | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Gemination of teeth | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary external ear | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory fallopian tube | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary ear lobule | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory skeletal muscle | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory nipple | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory lung | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Polydactyly of toes | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 3 | 
| Accessory bladder | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory ossification centre | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory ureter | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory parathyroid gland | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory thyroid gland | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory adrenal gland | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory salivary gland | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory liver | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Bilateral left-sidedness sequence | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Cervical rib | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Pleonotia | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Tuberculum paramolare | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory hepatic duct | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory pancreas | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Polydactyly of fingers | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 3 | 
| Accessory urethra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Placenta succenturiata | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary eye muscle | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Megacalycosis | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Polymelia | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory bronchus | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary gallbladder | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory gonad | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary metacarpal bone | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory sternebral ossification site | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary phalanx | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Polysyndactyly syndrome | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Polysyndactyly | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Mirror hands and feet co-occurrent with nasal defect | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Polysyndactyly and cardiac malformation syndrome | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Full supernumerary rib | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Intercostal rib | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Intellectual disability, polydactyly, uncombable hair syndrome | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Short supernumerary rib | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary arch of cervical vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary arch of lumbar vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary arch of sacral vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary arch of thoracic vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary azygos vein | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary caudal vertebra | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary centrum of cervical vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary centrum of lumbar vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary centrum of sacral vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary centrum of thoracic vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary cervical vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary forepaw phalanx | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary fused sternebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary hindpaw phalanx | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary liver lobe | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary lumbar vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary metatarsal bone | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary sacral vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary tarsal bone | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Supernumerary thoracic vertebra | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Cervical rib syndrome | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Familial supernumerary nipple | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Crossed polysyndactyly | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 | 
| Ectrodactyly polydactyly syndrome | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 3 | 
| Hallux varus, preaxial polysyndactyly syndrome | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 2 | 
| Supernumerary ear | Associated morphology | False | Supernumerary structure | Inferred relationship | Some | 1 | 
| Accessory tragus | Associated morphology | True | Supernumerary structure | Inferred relationship | Some | 1 |