Acute ulnar nerve compressive neuropathy at the elbow caused by an accompanying aberrant vessel: A case report

Cubital tunnel syndrome caused by a vessel anomaly is extremely rare. In our case, a patient complained of acute ulnar nerve neuropathy immediately following an operative mass excision at the contralateral elbow. There were no pathologic findings other than twisting of the accompanying vessel around the ulnar nerve. Symptoms were completely relieved following abnormal vessel ligation and ulnar nerve transposition. Hence, we conclude that aberrant vessel paths can cause acute ulnar nerve neuropathy around the elbow.