Yoshiyasu Kiribuchi

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BACKGROUND Recent advances in colonoscopy have resulted in an increasing number of endoscopic resections of colorectal neoplasms. However, endoscopic resection of submucosal invasive cancer remains a controversial issue. METHODS The subjects for this study were the surgically treated patients with submucosal invasive colorectal cancer. These patients were(More)
Background: Recent advances in colonoscopy have resulted in an increasing number of endoscopic resections of colorectal neoplasms. However, endoscopic resection of submucosal invasive cancer remains a controversial issue. Methods: The subjects for this study were the surgically treated patients with submucosal invasive colorectal cancer. These patients were(More)
A 30 year old female was admitted with right upper abdominal pain and fever. Ultrasonography and computed tomography revealed a large cystic mass in the right lobe of the liver, and aspiration bacteriology was negative. A right hepatic lobectomy was performed for a suspected cystadenocarcinoma, however, the tumor was histologically diagnosed as a(More)
Appendico-vesical fistula is a rare condition. In total, 109 cases, most secondary to appendicitis, have been reported in the English-language litera-ture. We report the first case, to our knowledge, of appendico-ileo-vesical fistula secondary to appendiceal diverticulitis. An enterovesical fistula was diagnosed by urine culture, cystoscopy, and computed(More)
We present a non-icteric case, in which an ampullary polypoid lesion was clearly demonstrated by ultrasonography, suggesting carcinoma of the ampulla of Vater. The lesion was a 3 cm in diameter, spherical tumor with a polypoid surface, and internal hyperechogenicity. The patient underwent a curative pylorus-preserving pancreaticoduodenectomy.
The cell-mediated immunity of gastric cancer subjects was investigated during the postoperative follow-up period from three to 12 months after surgery. The lymphocyte blastogenesis, the T cell count, the lymphocyte count and the lymphocyte percentage were significantly decreased in groups of experimental laparotomy and noncurative gastrectomy, compared with(More)
of v i tamin B1 deficiency group was prolonged for about 4 hours bo th in the colon and in the stomach, but shor tened for about 1 hour in the jejunum. Conclusion: When compared with the cell counts of generat ive compar tmen t of the said t issues, the increase of cell counts and high labeling index in v i tamin B2 deficiency group may be due to increase(More)
taminated with a strain of E. coli a remarkable increase of E. coli in the intestinal contents was observed. 3. A high degree of histological change as found by microscopic examination, and the change of the cytological fine s t ructure as determined by electron microscopic examination in the upper and lower parts of the intestinal closed loop were more(More)
Antibody-dependent cell-mediated cytotoxicity (ADCC) was studied in 20 gastric and colorectal cancer patients by the microtest plate assay with sheep erythrocytes as the target cells. In cancer patients (with both good and poor prognosis), the peripheral K-cell level showed a significant decrease as compared with that of normal subjects. No meaningful(More)