Extensor digitorum brevis manus in the nondominant hand of two brothers.
This is the first reported case in the English-language literature of surgical confirmation of the extensor digitorum brevis manus in the nondominant hand of two brothers. The familial incidence of this atavistic muscle has not been widely studied.
D000328:Adult; D006228:Hand Deformities, Congenital; D006801:Humans; D008297:Male; D009132:Muscles / Q000002:abnormalities*