IJCRR - 5(17), September, 2013
AN ANOMALOUS CORACOBRACHIALIS MUSCLE - A CASE REPORT
Author: Surwase Ramdas Gopalrao, Lakshmi Rajgopal
Coracobrachialis a muscle of flexor compartment of the arm is usually attached proximally to the tip of the coracoid process of scapula along with short head of biceps brachii and distally attached to the medial border of middle of shaft of humerus. During routine dissection of the upper limb, an anomalous coracobrachialis muscle was found on the left arm of a male cadaver. Its proximal attachment was from the fibrous band of medial intermuscular septum of arm. Its distal attachment was to the medial epicondyle of humerus and to the antebrachial fascia. Median nerve and brachial artery were seen passing deep to this muscle. This variation is important for clinicians and radiologists.
Keywords: coracobrachialis inferior muscle, Wood’s muscle, musculocutaneous nerve, brachial artery, median nerve, fibrous tunnel.
Surwase Ramdas Gopalrao, Lakshmi Rajgopal. AN ANOMALOUS CORACOBRACHIALIS MUSCLE - A CASE REPORT International Journal of Current Research and Review. 5(17), September, 112-115
1. William PL, Warwick R, Dyson M, Bannister LH: Gray’s anatomy 37th edition, Edinburgh, Churchill Livingstone, 1989; 614-615.
2. McMinn RMH. Editor Last’s Anatomy: Regional and Applied. 8th ed. Edinburgh, Churchill Livingstone, 1990 ; 79.
3. Kumar N, Shetty SD, Somayaji SN, Nayak SB: Presence of accessory coracobrachialis and its clinical importance – A case report, Int. J. Anat. Var. (IJAV). 2012 ; 5:27-28.
4. Wood J.: On human muscular variations and their relation to comparative anatomy, J. Anatomy Physiol. 1867; 1:44-59.
5. El-Naggar MM, Zahir FI: Two bellies of coracobrachialis muscle associated with a third head of the biceps brachii muscle, Clin.Anat.2001; 14(5): 379-82.
6. Bergman RA, Thompson SA, Afifi AK, Saadeh FA: Muscles In Compendium of Human Anatomical Variation Text, Atlas and World Literature. Baltimore, Urban and Schwarzenberg, 1988; 10-11.
7. Ray B, Rai A.L, Roy T.S.: Unusual insertion of coracobrachialis muscle to the brachial fascia associated with high division of brachial artery, Clinical Anatomy, 2004; 17:672-676.
8. Doyle J, Bottle M, Krames C, Roselius E.: Editors Muscle Anatomy In: Surgical Anatomy of the hand and upper extremity. Baltimore, Lippincott, Williams and Wilkins, 2003; 97-98.
9. Rodrigues V, Nayak S, Nagabhodshana S, Vollala VR: Median nerve and brachial artery entrapment in the tendinous arch of coracobrachialis muscle, Int. J. Anat. Var. (IJAV). 2008 ; 1:28-29.
10. Kopuz C, Icten N, Yildirim M.: A rare accessory coracobrachialis muscle: A review of literature, Surgical Radio Anat.2003; 24: 406-410.
11. El-Naggar MM, Al-Saggaf S: Variant of coracobrachialis muscle with tunnel for median nerve and brachial artery. Clin.Anat.2004; 17: 139-143.
12. Potu BK, Rao MS, Nayak SR, Vollala VR, Mandava AK, Thomas H: Variant insertion of coracobrachialis muscle in a south Karnataka cadaver, Cases Journal.2008; 1:291.
13. Kumar N, Shetty SD, Somayaji SN, Nayak SB: Presence of accessory coracobrachialis and its clinical importance –a case report, Int. J. Anat. Var. (IJAV),2012; 5:27-28.
14. Guha R, Satyanarayana N, Reddy CK, Jayasri N, Nitin V, Praveen G, Sunitha P, Datta AK: Variant insertion of coracobrachialis musclemorphological significance, embryological basis and clinical importance, JCMSNEPAL.2010; 6(2):42-46.