Unilateral high division of the Sciatic Nerve with divided Piriformis

Abstract While doing the routine dissection for the undergraduate students in the department of Anatomy, Nil Ratan Sircar Medical College, Kolkata, few variations were found in the gluteal region of a 70 years old male cadaver, in the year 2013. On the right side the sciatic nerve (SN) pierced the piriformis muscle dividing it into superior and inferior slips and then, after a short distance, divided into tibial and common peroneal nerves in the gluteal region. On the left side, sciatic nerve divided into two terminal branches (common peroneal and tibial nerves) in the lower part of the back of the thigh near the apex of the popliteal fossa as usual. This high division of the sciatic nerve may result in nerve injury during deep intramuscular injections in gluteal region, piriformis syndrome due to compression of the nerve, failed SN block in anesthesia and surgical complications

Variations in the right upper limb veins of a single cadaver

Abstract While doing the routine dissection for the undergraduate students in NRS Medical College, Kolkata, India, few vascular variations were found in the right upper limb of one seventy year old male cadaver. The dissection was done in September, in the year 2013 and variations were detected in the superficial and deep veins of the right superior extremity of the cadaver concerned. The right basilic vein joined the two brachial veins (venae comitantes of the brachial artery) separately in the right axilla, close to the shoulder joint, instead of at the lower margin of teres major or subscapularis muscle and formed the right axillary vein. On the left sided superior extremity no such venous variation was detected. This case report will contribute to the fields of Gross and Clinical Anatomy, at the same time may be of help to the surgeons and other clinicians for any invasive procedure or surgical approach in the upper limb like introduction of cardiac catheters and formation of arteriovenous fistula. So the case report has importance in surgery, cardiology and nephrology in addition to Anatomy