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Of 105 patients of hepatocellular carcinoma (HCC) treated during 1970-1988, twelve patients had spontaneous rupture of carcinomatous nodules. 1) Of previous 6 cases, five were treated by conventional surgical procedures such as packing and suture, and all died. One case underwent right lobectomy following guaze pack and lived for 15 months. 2) The recent 6 cases underwent emergency transcatheter arterial embolization (TAE ) and two died of hepatic failure due to severe cirrhosis. The other 4 cases had successful control , of bleeding which allowed further treatment of HCC ; hepatectomy in 3 and repeated TAE in one. 3) All cases had precirrhosis or cirrhosis. Pathologically, ruptured tumors expansively growing with capsule invasion of cancer cells, and portal tumor thrombus were recognized in resected or autopsy specimens. DNA aneuploid HCC on flow cytometric DNA analysis were found in 4 out of 5 cases. In conclusion, hepatic resection following embolization, when possible, would seem to be rational treatment for spontaneous rupture of HCC, although the prognosis is still extremely poor despite successful control of bleeding., Acta medica Nagasakiensia. 1989, 34(2-4), p.203-208

From 1967 through 1987, 43 of primary malignant tumors of the small intestine were experienced at the First Department of Surgery, Nagasaki University Hospital and affiliated hospital, and clinically analysed. 1) Carcinoma, leiomyosarcoma and malignant lymphoma occupied one third in number. The preferable location of carcinomas and malignant lymphomas was lower part of the small bowel although that of leiomyosarcoma was upper part. 2) Diagnosis was mainly made by means of laparotomy which was carried out by clinical signs of obstruction or peritonitis. poor prognosis attributed to extension of a disease to nodes and liver. An early and accurate diagnosis of small bowel tumors is necessary for improving the survival rate., Acta medica Nagasakiensia. 1988, 33(1-4), p.127-129

Carcinoembryonic antigen (CEA) in serum and fresh cancer tissue taken at surgery was measured and analyzed in terms of the disease stage. The CEA level in serum (s-CEA ) has become higher with advance in the disease stage. However, in stage V it was lowered as well as CEA level in cancer mass (ca-CEA). It is suggested that S-CEA is influenced by cancer invasion into the vessel wall, tumor necrosis and/or degeneration which ca-CEA may well be migrated from the tumor cells., Acta medica Nagasakiensia. 1988, 33(1-4), p.167-169