[An autopsied case of malignant fibrous histiocytoma of the spleen].

An auspsied case of malignant fibrous histiocytoma (MFH) is reported. The patient, a 53-year-old male had developed splenomegaly 1 year before admission. On admission, hepatosplenomegaly and ascites were seen, with prominent leucocytosis in the peripheral blood, and the patient died of cachexia. On autopsy, the primary neoplasma was found in the spleen, with metastasis to the liver, vertebrae, lymph nodes and peritoneum. Histologically, to tumor showed a storiform arrangement of tumor cells, with foamy or hemosiderin-faden cytoplasm in places, corresponding to MFH. As far as we know, there have been no reports of primary MFH of the spleen in Japan.