title: Malignant fibrous histiocytoma mimicking pulmonary embolism.
abstract: A rare case of malignant fibrous histiocytoma occurring in the pulmonary artery is reported. Such primary pulmonary artery sarcomas may have the diagnosis suggested by angiography or echocardiography; radiographically and in perfusion-ventilation scanning their usual unilateral origin (with later spread) and the persistence of the perfusion defect are among the features normally distinguishing them from thromboembolism.
authors.affiliation: Department of Radiodiagnosis, Catholic University Hospital, Nijmegen, The Netherlands.
authors.forename: T J
authors.initials: TJ
authors.lastname: Sleyster
authors.forename: F M
authors.initials: FM
authors.lastname: Heystraten
mesh_terms: D003937:Diagnosis, Differential; D018219:Histiocytoma, Benign Fibrous / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000000981:diagnostic imaging; D011655:Pulmonary Embolism / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011859:Radiography