upper limb hypoplasia

Last reviewed 01/2018

Undergrowth or hypoplasia in the upper limb has a wide spectrum of features. It can be present as an isolated anomaly or be part of a syndrome. It may affect a limited region of the limb, as with thumb hypoplasia, or the whole limb.

Common examples include:

• brachydactyly
• symbrachydactyly
• thumb hypoplasia
• Madelung's Deformity