Entrapment of musculocutaneous nerve in the upper arm

Nine cases with musculocutaneous nerve entrapment were presented in which the nerve was affected while passing through the substance of coracobrachialis muscle. They were examined clinically, radiologically and electrom-yographically together with laboratory tests to exclude other simulatory factors. All cases were given intensive physiotherapy for the coracobrachialis and the biceps with occasional anti-inflammatory drugs. Great improvement has been achieved except for two cases that received local corticosteroid injection at the coracobrachialis muscle with compete recovery