[A 15-year-old adolescent presenting both Madelung deformity with Vickers' ligament and additional palmaris profundus muscle].

The palmaris profundus muscle is a rare entity which has been mentioned in association with nerve compressions. Madelung deformity is based both on an osteochondral lesion of the distal radial physis and often on the Vickers' ligament which originates around the lunate and inserts proximally in the radial physis. A 15-year-old right-handed female adolescent suffered from symptomatic left-sided Madelung deformity with Vickers' ligament and additional palmaris profundus muscle.