Yu Asakura

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A 57-year-old man with abdominal discomfort visited our hospital. Abdominal computed tomography (CT) revealed no tumorous lesions. Endoscopic retrograde cholangiography (ERC) revealed a tumorous lesion in the middle bile duct. Peroral cholangioscopy-assisted biopsy was performed, and the lesion was diagnosed as a papillary adenocarcinoma. Extra bile duct(More)
A 69-year-old man with left upper abdominal pain visited our hospital. Abdominal CT revealed a hypovascular mass(66× 57mm)in the pancreatic tail. MRI revealed hemorrhage and cysts in the caudal lesion of the tumor. The tumor involved the posterior wallof the stomach. Based on a diagnosis of pancreatic tailcancer with gastric posterior wallinvasion,(More)
PURPOSE The aim of this study was to compare the efficacy between the use of transnasal and transanal tube decompression and self-expanding metallic stents (SEMS) as a bridge to surgery for obstructive colorectal cancer. MATERIALS Of a total of 42 patients with obstructive colorectal cancer, 29 were managed with transnasal or transanal tubes and 13 were(More)
A 79-year-old man was admitted to our hospital because of a positive fecal occult blood test. Gastrointestinal endoscopy revealed a tumor in the duodenal bulb. Histologically, biopsy specimens indicated adenocarcinoma. The patient underwent distal gastrectomy. Histopathological examination showed a neuroendocrine carcinoma with an adenocarcinoma. According(More)
A total of 37 patients were surgically treated for a colorectal perforation between May 2006 and December 2013. The patients were divided into 2 groups: those with perforation due to colorectal cancer(colorectal cancer group, n=12) and those with perforation due to benign colorectal disease(non-colorectal cancer group, n=25). We examined the influence that(More)
A 63-year-old man was admitted to our hospital with a cough. Based on imaging studies, the patient was diagnosed with locally advanced descending colon cancer with extensive infiltration into peripheral organs by extramural progression. There was no distant metastasis. Therefore, he received left hemicolectomy with splenectomy, partial gastrectomy, and(More)
Low-grade appendiceal mucinous neoplasm(LAMN)is a rare disease. In consideration of consistency with the 2010WHO Classification, LAMNwas classified in the Japanese Classification of Colorectal Carcinoma 8th edition. The present study involved 14 patients with LAMNover a 5-year period. The preoperative diagnosis was made as mucocele of the appendix in 9(More)
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