[Clinical aspects and therapy of benign pleural mesothelioma. A case report]

It is reported on a large benign monophasic fibrous mesothelioma. Despite its enormous size it was clinically silent and caused considerable problems in diagnosis and localisation. Computed tomography and arteriography suggested that the tumour, which was attached to the diaphragm and vascularized by strong vessels of the left gastric artery arose from the retroperitoneum. Therefore, falsely, the patient underwent initial laparotomy. At thoracotomy, the pedunculated tumour war easily removed. Histiogenesis and prognosis are evaluated in detail.