title: [A case of so-called carcinosarcoma of the lung].
abstract: A 65-year-old male was admitted to our institute because of bloody sputum. A tumor in right S6 was detected by X-ray, CT and MRI. Bronchoscopic study showed that the right lower bronchus was occluded by the tumor, in which non-epithelial malignant cells were detected. Therefore right bilobectomy was performed. This tumor was a pedunculated endobronchial type measuring 6 x 4 x 3cm. Histologically, the tumor presented carcinomatous (squamous cell carcinoma and adenocarcinoma) and sarcomatous elements. Immunohistologically, many malignant cells were positively stained by vimentin and muscle-actin, which suggested differentiation from muscle components.
authors.affiliation: Department of Thoracic Surgery and Pathology, Tenri Hospital.
authors.forename: C
authors.initials: C
authors.lastname: Huang
authors.forename: M
authors.initials: M
authors.lastname: Kitano
authors.forename: A
authors.initials: A
authors.lastname: Tatsumi
authors.forename: H
authors.initials: H
authors.lastname: Tanaka
authors.forename: M
authors.initials: M
authors.lastname: Nagasawa
authors.forename: K
authors.initials: K
authors.lastname: Ichijima
authors.forename: Y
authors.initials: Y
authors.lastname: Kobashi
mesh_terms: D000368:Aged; D002296:Carcinosarcoma / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D014057:Tomography, X-Ray Computed