title: Periosteal chondroma of the fifth toe--a case report.
abstract: A case of a periosteal chondroma arising in the fifth toe is reported. A 19-year-old man presented a palpable mass of his left fifth toe with pain for 2 years. Plain radiographs showed mild irregularity of the cortical bone of the fifth proximal phalanx. Magnetic resonance imaging revealed a tumour attached to the fifth proximal phalanx with low signal intensity on T1-weighted images and high signal intensity on T2-weighted images without intramedullary extension. The tumour was enhanced heterogeneously after intravenous injection of gadolinium diethylene triamine penta-acetic (GD-DTPA). The tumour was removed, together with the covering periosteum. It was diagnosed as periosteal chondroma histologically.
authors.affiliation: Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryomachi, Aobaku, Sendai, Japan.
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Hagiwara
authors.forename: Masahito
authors.initials: M
authors.lastname: Hatori
authors.forename: Akifumi
authors.initials: A
authors.lastname: Abe
authors.forename: Kentaro
authors.initials: K
authors.lastname: Tanaka
authors.forename: Shoichi
authors.initials: S
authors.lastname: Kokubun
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D002812:Chondroma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010521:Periosteum / Q000473:pathology; D011877:Radionuclide Imaging; D014034:Toes / Q000473:pathology
chemical_list: D019786:Gadolinium DTPA