描述(英)
A form of brachydactyly. Brachydactyly defines a group of inherited malformations characterized by shortening of the digits due to abnormal development of the phalanges and/or the metacarpals. Brachydactyly type C is characterized by deformity of the middle and proximal phalanges of the second and third fingers, sometimes with hypersegmentation of the proximal phalanx. The ring finger may be essentially normal and project beyond the others.