title: Anomalous course of the extensor pollicis longus: clinical relevance.
abstract: The extensor pollicis longus (EPL) is a consistent structure with rare anomalies, the most common being a group of different tendon duplications passing through the fourth compartment without symptoms. The second form comprises anomalies in the course of the EPL having significant clinical importance due to the predisposition for creating tenosynovitis of the EPL mimicking other types of tendon tenosynovitis. Clinical symptoms of radial dorsal wrist pain mimicking intersection syndrome or de-Quervain disease with the "absent snuff box" sign should raise suspicions for an anomaly in the course of the EPL.
authors.affiliation: Department of Orthopedic, Ha'Emek Medical Center, Afula, Israel. guytalr@bezeqint.net
authors.forename: Guy
authors.initials: G
authors.lastname: Rubin
authors.forename: Alejandro
authors.initials: A
authors.lastname: Wolovelsky
authors.forename: Micha
authors.initials: M
authors.lastname: Rinott
authors.forename: Nimrod
authors.initials: N
authors.lastname: Rozen
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D013710:Tendons / Q000002:abnormalities* / Q000601:surgery*; D013933:Thumb