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Malignant fibrous histiocytoma mimicking pulmonary embolism.
  1. T J Sleyster,
  2. F M Heystraten
  1. Department of Radiodiagnosis, Catholic University Hospital, Nijmegen, The Netherlands.


    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.

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