title: Case report 858: Postradiation osteosarcoma of the patella.
abstract: A case of postradiation osteosarcoma of the patella in a 54-year-old man was presented. The lesion in the patella was diffuse and highly sclerotic, and was partially radiolucent in radiographs. The whole patella was removed by Miyakawa's method. Diagnostic criteria, clinical features, and radiographic findings of postradiation sarcoma were described. The rarity of osteosarcoma of the patella was emphasized.
authors.affiliation: Department of Orthopedic Surgery, Akita University School of Medicine, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Okada
authors.forename: K
authors.initials: K
authors.lastname: Sato
authors.forename: E
authors.initials: E
authors.lastname: Abe
authors.forename: Y
authors.initials: Y
authors.lastname: Kataoka
authors.forename: N
authors.initials: N
authors.lastname: Miyakoshi
authors.forename: N
authors.initials: N
authors.lastname: Ishikawa
authors.forename: M
authors.initials: M
authors.lastname: Sageshima
mesh_terms: D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009381:Neoplasms, Radiation-Induced / Q000000981:diagnostic imaging / Q000473:pathology; D016609:Neoplasms, Second Primary / Q000000981:diagnostic imaging / Q000473:pathology; D012516:Osteosarcoma / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology; D010329:Patella / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D011878:Radiotherapy / Q000009:adverse effects