Ulnar nerve entrapment in Guyon's tunnel by an anomalous palmaris longus muscle with a persisting median artery.

Acta Orthop Belg

2nd Orthopedic Department, University of Pisa, Via Risorgimento 36, 56100 Pisa, Italy.

Published: October 2001

A case of ulnar nerve entrapment in Guyon's tunnel caused by an aberrant palmaris muscle, associated with a patent median artery and duplication of the median nerve, is reported.

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