title: Carpal tunnel syndrome caused by gouty tophus of the flexor tendons of the fingers: sonographic features.
abstract: We report the case of a 23-year-old male presenting with carpal tunnel syndrome and a swelling over the flexor surface of the wrist. MRI findings were initially suggestive of a median nerve schwannoma but sonography (US) showed a heterogenous mass infiltrating the flexor tendons of the fingers and displacing the median nerve in the carpal tunnel. US findings were confirmed by surgical exploration, which revealed a gouty tophus of the flexor tendons of the fingers at the wrist with secondary median nerve displacement and compression.
authors.affiliation: Neurology Diagnostic Laboratory, National University Hospital, Singapore 119074.
authors.forename: Aravindakannan
authors.initials: A
authors.lastname: Therimadasamy
authors.forename: Yeong Pin
authors.initials: YP
authors.lastname: Peng
authors.forename: Thomas Choudary
authors.initials: TC
authors.lastname: Putti
authors.forename: Einar Patrick Vincent
authors.initials: EP
authors.lastname: Wilder-Smith
mesh_terms: D000328:Adult; D002349:Carpal Tunnel Syndrome / Q000000981:diagnostic imaging* / Q000209:etiology; D005385:Fingers; D006073:Gout / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008297:Male; D013710:Tendons / Q000000981:diagnostic imaging; D014463:Ultrasonography; D014953:Wrist