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International Journal of Recent Trends in Science and Technology, ISSN 2277-2812 E-ISSN: 2249-8109

Volume 12, Issue 1, September 2014 pp 28-30

Case Report
Anomalous muscle bellies in the flexor compartment of forearm - a case report

Sunita U Sawant1, Sunil M Kolekar2

{1Associate Professor, Department of Anatomy} {2Associate Professor, Department of Physiology}

Alluri Sitarama Raju Academy of Medical Sciences , Eluru, Andhra Pradesh, INDIA.

Introduction: The muscular variations of upper limb are common. Their importance becomes apparent with regard to surgical approaches for various clinical conditions involving the upper limb. During routine dissection classes to undergraduate medical students, we came across two additional muscle bellies in the flexor compartment of the left forearm of a male cadaver arising from the under surface of flexor digitorum superficialis (FDS) and were found to be inserted into flexor digitorum profundus (FDP) and flexor pollicis longus (FPL) separately. The above two accessory muscle bellies are also called Gantzer's muscles. In another male cadaver, an accessory muscle belly arising from the flexor digitorum superficialis of the right forearm was found to be inserted into the flexor digitorum profundus (FDP). Muscle anomalies of the upper extremity are recognized causes of peripheral nerve disorder. Awareness of these variations is necessary to avoid complications during radio-diagnostic procedures or surgeries in the upper limb..