title: Foot drop in a long-distance runner. An unusual presentation of neurofibromatosis.
abstract: An athletic patient presented with a nontraumatic peroneal neuropathy that failed to resolve after a period of rest. A magnetic resonance image (MRI) showed a multilobulated mass in the course of the common peroneal nerve consistent with a plexiform neurofibroma. Surgical exploration revealed a mass, which coursed from the midthigh to the fibular neck, that was intimately involved with the fibers of the nerve bundle and had cystic degeneration with vesicles along its length. The authors recommend MRI as highly accurate in diagnosing unusual causes of peroneal neuropathy.
authors.affiliation: Department of Orthopaedic Surgery, Insall Scott Kelly Institute for Orthopaedics and Sports Medicine, Beth Israel Medical Center, New York, New York.
authors.forename: A
authors.initials: A
authors.lastname: Nagel
authors.forename: E
authors.initials: E
authors.lastname: Greenebaum
authors.forename: R D
authors.initials: RD
authors.lastname: Singson
authors.forename: M P
authors.initials: MP
authors.lastname: Rosenwasser
authors.forename: P D
authors.initials: PD
authors.lastname: McCann
mesh_terms: D000328:Adult; D004576:Electromyography; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D018318:Neurofibroma, Plexiform / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery; D010524:Peripheral Nervous System Neoplasms / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery; D010543:Peroneal Nerve / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D012420:Running