Lesions of the brachial plexus

Abstract

Tumors of the brachial plexus frequently are not readily apparent and may masquerade as proximal or distal neurologic lesions. Potential pitfalls in diagnosing occult plexal lesions are numerous. Findings of severe pain, proximal and multiple peripheral nerve abnormalities, masses, or an atypical response to management should lead to imaging and electrodiagnostic evaluation of the brachial plexus.