Communicating Branch of Casserio?s Nerve and Caput Accessorium of Biceps Brachii - A Case Report

Casserio's Nerve (Musculocutaneous nerve (MCN)), a branch from the lateral cord of the brachial plexus, supplies the muscles of the front of arm, which include biceps brachii, brachialis and coracobrachialis [1]. In this case report, a rare communication between MCN and Median nerve (MN) was observed bilaterally along with a supernumerary head of biceps brachii (caput accessorium) in the left upper limb [2]. These anatomical variations are of great significance when we consider the number of operative procedures routinely done following trauma around these areas. Compression and entrapment neuropathies are of concern in such variations as the site of lesion and clinical features may be difficult to understand.