Six cases of surgically treated thoracic outlet syndrome have been reported in this paper.
Five cases out of the six had had resected the first rib through axillary approach and one had the tenotomy of the pectoralis minor muscle. Five cases showed good recovery. On arteriography, most frequent site of compression lesicon was located in subclavian artery in the costoclavicular space in Wright's position. On radiological examination, congenital anomaly, the pseudarthrosis of the first rib was found in two cases.
