title: Primary osteosarcoma of the lung: report of a case.
abstract: Osteosarcoma of the lung without an extrathoracic primary tumor is extremely rare, with only eight cases documented in the literature, to the best of our knowledge. We report a case of primary osteosarcoma of the lung found in an asymptomatic 74-year-old woman. Computed tomography showed a heterogeneous mass beside the aortic arch, and the patient underwent a left upper lobectomy. The pathology results confirmed a diagnosis of primary osteosarcoma.
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Nayoro City Hospital, West 7, South 8, Nayoro, Hokkaido 096-8511 Japan.
authors.forename: Katsuaki
authors.initials: K
authors.lastname: Magishi
authors.forename: Hiroki
authors.initials: H
authors.lastname: Yoshida
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Izumi
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Ishikawa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kubota
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000601:surgery; D012516:Osteosarcoma / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000601:surgery; D011013:Pneumonectomy; D014057:Tomography, X-Ray Computed