title: Carcinosarcoma in Barrett's oesophagus: a case report with immunohistological examination.
abstract: A case of a carcinosarcoma which developed in a Barrett's oesophagus is presented. The tumour consisted of an adenocarcinoma and a spindle cell sarcoma. Immunohistological examinations demonstrated vimentin positivity in the sarcomatous portion with a negative reaction for keratin. Immunohistological and histological findings did not rule out the possibility of a double or collision tumour in this case.
authors.affiliation: Department of Pathology in the Surgical Clinic, University of Erlangen, Germany.
authors.forename: O
authors.initials: O
authors.lastname: Dworak
authors.forename: H P
authors.initials: HP
authors.lastname: Koerfgen
mesh_terms: D000368:Aged; D001471:Barrett Esophagus / Q000150:complications*; D002296:Carcinosarcoma / Q000737:chemistry / Q000209:etiology / Q000473:pathology*; D004938:Esophageal Neoplasms / Q000737:chemistry / Q000209:etiology / Q000473:pathology*; D006801:Humans; D007381:Intermediate Filament Proteins / Q000032:analysis; D008297:Male
chemical_list: D007381:Intermediate Filament Proteins