First Case Report of Extensor Digitorum Brevis Manus (Edbm) in Iran and Literature Review

During the dissection of a fifty-years old male cadaver with normally fined, we observed a rare variation in the dorsum of its hands in both sides. This variation was abnormal extensor digitorum brevis manus muscle (EDBM), which originated from the dorsum of wrist and inserted to the u]nar side of the index tendon of extensor digitorum muscle. In this case, extensor indicis muscle was absent. In the present study, we argue about the historical origine, clinical importance and muscular nomenclature.