<prompt> Commonest symptom associated with thoracic outlet syndrome is:-Intermittent claudicationPain in radial distributionPain in ulnar distributionGangrene  <response>: Clinical Features In 90 of cases, neurogenic manifestations are repoed. Ulnar nerve C8-T1 involvement is most common Motor weakness and atrophy of the hypothenar and interosseous muscles Pain and paresthesia along the medial aspect of the arm, hand, 5th finger and medial aspect of 4th finger. 