Symphalangism

The phalanges (singular: phalanx ) are digital bones in the hands and feet of most vertebrates. In primates, the thumbs and big toes have two phalanges while the other digits have three phalanges. [Source: Wikipedia ]

Synonyms

Fusion of phalanges in a digit

Subtypes

Proximal symphalangism

May Cause

Carpal and/or tarsal fusion

Ulnar ray hypoplasia

May Be Caused by

 Common

Isolated anomaly

 Uncommon

Acrocephalosyndactyly

Apert syndrome

Brachydactyly type B

Brachydactyly type C

Carpal-tarsal coalition

CHAR syndrome

Cushing symphalangism

Diastrophic dysplasia

Familial brachydactyly B

Familial brachydactyly C

Familial distal symphalangism

Fluconazole embryopathy

Hand-foot-genital syndrome

Hereditary symphalangism and tarsal synostosis

Kantaputra mesomelic dysplasia

Lenz-Majewski dysplasia

Metacarpal 4-5 synostosis

Möbius syndrome

Multiple synostosis syndrome

Oculo-dento-osseous dysplasia

Poland syndrome

Popliteal pterygium syndrome

Pterygium syndrome

Short rib-polydactyly syndrome type 1

Symphalangism complete-carpal fusion

Symphalangism-surdity syndrome

Ventruto syndrome