Fig. 1From: Esophageal cancer with right vertebral artery variation observed during thoracoscopic esophagectomy: a case reportAn unusual blood vessel running along the right subclavian artery was found during a thoracoscopic esophagectomy. a As with normal anatomy, the right vagus nerve (white arrow) running on the dorsal side of the right subclavian artery (white arrowhead). b An unusual blood vessel (black arrow) was found on the ventral side of the right recurrent laryngeal nerve (black arrowhead). c We determined this unusual blood vessel (black arrow) to be the right vertebral artery. Show the surgical field after dissection was completedBack to article page