title: Fibroma of the peroneus longus tendon sheath in a child: a case report.
abstract: Tendon sheath fibromas are rare, benign soft-tissue tumours and usually involve tendons of the upper extremities, particularly the fingers. The most common presentation is a painless, slow-growing swelling. Tendon sheath fibromas are composed of dense fibrocollagenous stromas with scattered, spindle-shaped fibroblasts and narrow, slit-like vascular spaces. Ultrasonography and magnetic resonance imaging are useful diagnostic tools. We report on an 11-year-old boy with a fibroma involving the right peroneus longus tendon sheath.
authors.affiliation: Department of Paediatric Orthopaedics, Our Lady's Children's Hospital, Dublin, Ireland.
authors.forename: Gregory J
authors.initials: GJ
authors.lastname: Nason
authors.forename: Joseph F
authors.initials: JF
authors.lastname: Baker
authors.forename: Patrick
authors.initials: P
authors.lastname: O'Toole
authors.forename: Anna
authors.initials: A
authors.lastname: Walsh
authors.forename: Darren F
authors.initials: DF
authors.lastname: Lui
authors.forename: Francis
authors.initials: F
authors.lastname: O'Neill
authors.forename: Maureen
authors.initials: M
authors.lastname: O'Sullivan
authors.forename: Paula M
authors.initials: PM
authors.lastname: Kelly
mesh_terms: D002648:Child; D003937:Diagnosis, Differential; D005350:Fibroma / Q000175:diagnosis*; D005385:Fingers / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D013583:Synovial Membrane / Q000473:pathology*; D013710:Tendons / Q000473:pathology*
keywords: fibroma; pediatrics; tendons