Author/Authors :
Gholami Farashahi، Mohammad Sadegh نويسنده Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. Gholami Farashahi, Mohammad Sadegh , Seifali، Rahimeh نويسنده Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. Seifali, Rahimeh , Kheradmand، Ali Arab نويسنده Department of Surgery, Cancer Institute, Imam-Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran. Kheradmand, Ali Arab
Abstract :
Atypical connections in the formation of the brachial plexus are prevalent and have been reported
in different articles. The present report describes a case of variation of the median nerve observed
in the Iranian male cadaver during routine trial dissection. There are three roots for median nerve.
Median nerve is formed by joining two lateral and medial cords of brachial plexus. Third root of
median nerve which is carried by musculocutaneous nerve 3 cm of coracobrachialis muscle and
then it is separated from musculocutaneous nerve but instead of joining median nerve, it pierces
coracobrachialis muscle and outs from a place near entrance point and joins median nerve in
middle arm and normally passes the rest of its passage. It is important for medical staff to be aware
of this variation while planning a surgery in the region of axilla or arm, as these nerves are more
susceptible to be injured during operations.
