A RARE COMMON TRUNK FOR SUBSCAPULAR AND SUPRASCAPULAR ARTERIES: CASE REPORT AND ANATOMICAL INSIGHTS

An unusual origin of sub scapulo suprascapular arterial trunk was observed in one of the nearly old male embalmed cadaver during routine dissection classes for MBBS students. The sub scapulo supra scapular arterial trunk was seen to emerge from the 1st part of axillary artery on the right side of cadaver. While on left side axillary arterial branches were normal origin. The anomalous sub scapulo supra scapular arterial trunk was courses obliquely between musculocutaneus nerve and median nerve. Total length measured 4.2cms, and terminate into three branches, ventral & dorsal branches to subscapularis muscle and supra scapular branch. The supra scapular branch accompanied by supra scapular nerve, together passed beneath the superior transverse ligament. It then supplied the supra spinatus muscle. And finally took part in the anastomosis around the scapula. The anatomical knowledge of the sub scapular & supra scapular artery is of crucial importance for neurosurgeons and arthropedicians. The improved knowledge would allow more accurate diagnostic interpretations and surgical treatment.