Rare case of median nerve and brachial artery entrapment by an abnormal musculo-fascial tunnel in the arm: possible cause of neurovascular compression syndrome / 대한해부학회지

Entrapment neuropathies of the peripheral nervous system are frequently encountered due to anatomical variations. Median nerve is the most vulnerable nerve to undergo entrapment neuropathies. The clinical complications are mostly manifested by median nerve impingement in forearm and wrist areas. Median nerve entrapment could also occur at the arm, due to the presence of ligament of Struthers. Here we report a rare case of proximal entrapment of median nerve and brachial artery in the arm by an abnormally formed musculo-fascial tunnel. The tunnel was formed by the muscle fibers of brachialis and medial intermuscular septum in the lower part of arm. Due to this, the median nerve coursed deep, below the tunnel and continued distally into the forearm, underneath the pronator teres muscle and hence did not appear as a content of cubital fossa. The present entrapment of neurovascular structures in the tunnel might lead to pronator syndromes or other neurovascular compression syndromes.

Unique variation of the left testicular artery passing through a vascular hiatus in renal vein / 대한해부학회지

Surgeons should have a thorough knowledge regarding the morphologic variations of the testicular arteries as any injury to this artery during surgery might cause testicular atrophy. We report in here an unusual course of left testicular artery and discuss its embryological basis and its clinical implications. The left testicular artery had a high origin from the anterior aspect of the abdominal aorta at the level of origin of renal artery. In its further course, the left testicular artery passed through a hiatus present in the left renal vein. This unusual course of the testicular artery through the vascular hiatus might lead to its entrapment and is worth reporting in efforts to educate clinicians involved in abdominal and urogenital surgical procedures.