[Poorly differentiated angioblastic sarcoma (author's transl)]

The case of 83 year old man with multiple nodules and tumors in the right forearm is demonstrated. Postmortem examination revealed visceral metastases. Histologically the tumor consists of poorly differentiated cells of mesenchymal origin. However, neither the polymorphous tumor cells nor the structures they form, comparable to primitive mesenchyma, permit a definite classification of this peculiar tumor.