title: [A case of pulmonary carcinosarcoma with abnormal uptake in bone scintigraphy].
abstract: A 68-year-old man was admitted to our hospital with abnormal chest radiograph shadows. Chest CT showed a large mass with calcification in the right lower lobe. Bone scintigraphy revealed abnormal uptake by the tumor. The biopsy specimen obtained by bronchoscopy and fine-needle aspiration demonstrated no malignancy, and chest radiographs obtained two years before were normal. Right lower lobectomy was performed. Histologically, the tumor was composed of squamous cell carcinoma and osteosarcoma, and the diagnosis was true carcinosarcoma of the lung.
authors.affiliation: Department of Respiratory Disease, Sapporo City General Hospital.
authors.forename: Hajime
authors.initials: H
authors.lastname: Asahina
authors.forename: Sigeaki
authors.initials: S
authors.lastname: Ogura
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yamamoto
authors.forename: Eiki
authors.initials: E
authors.lastname: Kikuchi
authors.forename: Akihiko
authors.initials: A
authors.lastname: Tanaka
mesh_terms: D000368:Aged; D001842:Bone and Bones / Q000000981:diagnostic imaging*; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging* / Q000473:pathology; D002296:Carcinosarcoma / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D009378:Neoplasms, Multiple Primary; D011877:Radionuclide Imaging