title: [So-called carcinosarcoma of the lung: A case report].
abstract: A 50-year-old male was admitted to our hospital because of an abnormal shadow in chest X-ray films. The diagnosis of adenocarcinoma was obtained by transbronchial brushing cytology. Right lower lobectomy with hilar and mediastinal lymph node dissection was performed. Histological examinations of the resected specimen showed that the tumor was composed predominantly of spindle-shaped cells containing scattered islands of moderately differentiated adenocarcinoma. Immunohistochemically, the spindle cells were positively stained by vimentin, keratin and epithelial membrane antigen, suggesting sarcomatous transformation of adenocarcinoma cells.
authors.affiliation: Department of Surgery, National Sanatorium Nishigunma Hospital, Gunma, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Hirai
authors.forename: M
authors.initials: M
authors.lastname: Kamiyoshihara
authors.forename: O
authors.initials: O
authors.lastname: Kawashima
authors.forename: K
authors.initials: K
authors.lastname: Endo
authors.forename: A
authors.initials: A
authors.lastname: Maeshima
authors.forename: T
authors.initials: T
authors.lastname: Morishita
mesh_terms: D002296:Carcinosarcoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D003131:Combined Modality Therapy; D003581:Cytodiagnosis; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011013:Pneumonectomy; D014057:Tomography, X-Ray Computed