title: Periosteal chondroma of the proximal phalanx of the thumb.
abstract: A 52-year-old man presented with a periosteal chondroma in the base of the proximal phalanx of the right thumb. Magnetic resonance imaging (MRI) showed invasion of the bone marrow, which suggested malignancy. Although the clinical and MRI findings indicated a malignant tumour, the histopathological examination showed a benign periosteal chondroma.
authors.affiliation: Department of Orthopaedic Surgery, Tokai University, School of Medicine, Isehara, Kanagawa, 259-1193, Japan.
authors.forename: Eiji
authors.initials: E
authors.lastname: Shimpuku
authors.forename: Yoon Hwan
authors.initials: YH
authors.lastname: Lee
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Oka
mesh_terms: D002812:Chondroma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012983:Soft Tissue Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D013933:Thumb