A Cadaveric Case Report of the Four-Headed Bicep Brachii Muscle and its Clinical Importance: A Case Study

Objective: The motive of this cadaveric case report is to demonstrate a variation of the Bicep Brachii Muscle identified in Asian origin adult male cadaveric specimen and its eventual clinical consequences. Method: Left Upper extremity of Asian origin male cadaver has been dissected to show four headed Bicep Brachii Muscle. Adjacent neurovascular structures as well as muscles were isolated, and their courses were observed for possible areas of compression also for anatomical variation. Result: Four headed Bicep Brachii Muscle was founded on the left upper extremity of formalin fixed Asian origin an 84-yearold male cadaver. The median nerve and brachial artery maintained their common neurovascular path. The musculocutaneous nerve passed deep to the third head of the anatomical variant before distributing its cutaneous branches as the lateral antebrachial cutaneous nerves were observed. Conclusion: The presence of a four headed Bicep Brachii Muscle in anterior compartment of upper extremity may cause neurovascular compression of the median nerve, musculocutaneous nerve, or brachial artery, resulting in peripheral nerve difficulties, so the practitioners should pay more careful to existence of this type of variation in clinical practice. Hence, these findings are very important not only for anatomical education but can also to serve as useful data for clinical diagnosis, treatment and research purpose.