An accessory muscle belly or an accessory muscle head? An unusual arrangement of muscles in the anterior compartment of the forearm

ConclusionThe cases described by previous literature, concerning the Linburg –Comstock variation or the accessory head of the first lumbrical muscle originating from the FPL muscle, are closest to the present case. Such variation has a clinical significance ranging from the functional limitation of the thumb and index finger movement to the potential median nerve compressi on.

Source: Surgical and Radiologic Anatomy - January 25, 2023 Category: Anatomy Source Type: research