title: Multiple extensor tendon ruptures caused by tophaceous gout.
abstract: A 54-year-old woman presented with painless subcutaneous masses on her right hand and spontaneous loss of extension of her ring finger. Surgical exploration of the wrist showed hypertrophic white-colored crystal deposits that both surrounded and invaded into the extensor tendons (intratendinous invasion). Histopathologic examination of the specimen demonstrated findings consistent with gouty tophi. We conclude that tophaceous gout needs to be included in the differential diagnosis of chronic extensor tenosynovitis of the hand.
authors.affiliation: Institute of Rheumatology, Tokyo Women's Medical University, 10-22 Kawada, Shinjuku, Tokyo, 162-0054, Japan. iwatakuji@gmail.com
authors.forename: Takuji
authors.initials: T
authors.lastname: Iwamoto
authors.forename: Hiroe
authors.initials: H
authors.lastname: Toki
authors.forename: Katsunori
authors.initials: K
authors.lastname: Ikari
authors.forename: Hisashi
authors.initials: H
authors.lastname: Yamanaka
authors.forename: Shigeki
authors.initials: S
authors.lastname: Momohara
mesh_terms: D005260:Female; D006073:Gout / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D008662:Metacarpophalangeal Joint / Q000000981:diagnostic imaging; D008875:Middle Aged; D011859:Radiography; D012422:Rupture, Spontaneous; D013708:Tendon Injuries / Q000209:etiology*; D013709:Tendon Transfer; D013717:Tenosynovitis / Q000209:etiology* / Q000601:surgery