Abstract

Thoracic outlet syndrome (TOS) is a clinical picture characterised by different symptoms related with neck, shoulders, arms, and hands. Brachial plexus, subclavian artery and veins are frequently crush at costoclavicular triangle, subcoracoid space beneath the coracoid process and interscalene triangle, which is bordered by the anterior scalene muscle anteriorly, the middle scalene muscle posteriorly, and the medial surface of the first rib inferiorly.

One of the rare cause of TOS is apical lung tumors. As a result of infiltration of brachial plexus, neighbour ribs and vertebras, Horner syndrome, pain at C8-Th1 level and atrophy at arm, hand and finger muscles may be observed.

In this article, we discussed a TOS case caused by a pancoast tumor in the light of literature.