A 54-year-old manwith renal cell carcinoma was treated with interferon (IFN)-gamma for 3 weeks soon after nephrectomy. Three months later he received IFN-alpha therapy for 8 weeks due to chronic active hepatitis C. He subsequently contracted polymyositis (PM): proximal muscle weakness, an elevation of muscle enzymes, myogenic patterns on the electromyograph and histologically specific findings in biopsied muscle specimens. After discontinuation of IFN his muscular weakness gradually recovered. (Internal Medicine 33: 806-808, 1994)

The first case of primary gastric lymphoma associated with Beh^et's disease is reported. A 43year-old woman, who had been treated for Beh^et's disease for 15 years, was diagnosed as lowgrade and small lymphocytic malignant lymphomaof the stomach. Although the patient had been treated for Beh^et's disease, chemotherapy was performed and a complete remission of gastric lymphomawas achieved. The literature regarding the association of malignant diseases with Beh^et's disease is briefly reviewed.

A case of hepatocellular carcinoma with metastasis to the duodenum is reported on together with a review of the literature. A 61‐year‐old male was admitted with hematemesis and melena. An endoscopic examination revealed a large hemorrhagic ulcer at the duodenal bulbi. A biopsied specimen taken from the bottom of the ulcer revealed an infiltrating hepatocellular carcinoma. The postmortem examination revealed a hepatocellular carcinoma with metastasis in the duodenum. This is the third report of hepatocellular carcinoma with metastasis in the duodenum.

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