例1:男,49岁,4个月前因右下腹部疼痛,拟诊急性阑尾炎,在外院行阑尾切除术中发现结肠肝曲肿痫,固定,无法切除,行回肠末端横结肠吻合术。上消化道钡透发现食管静脉曲张,十二指肠水平部梗阻。经剖腹探查,发现肝硬化,脾大、少量腹水。结肠肝曲有 8 cm X 5 cm X 5 cm肿瘤·侵及十＝指肠水平部,固定,无法切除,行胃空肠吻合。术中在肿瘤边缘取活检时不慎损伤结肠壁,造成结肠穿孔。拟行升结肠切除、囚凝血机制障碍,游离升结肠时出血较多,血压下降,仅行结肠肝曲及部分肿瘤切除,关闭结肠两断端。术后 10 d并发升结肠残端暖,腹膜炎,食管静脉曲张破裂大出血,血经升结肠、腹腔引流管人挝流出。终囚失血性休克,腹膜炎,肝功能衰竭死亡。病理诊断:结肠鳞腺癌。例2:女,57岁,10个月前囚直肠癌肠梗阻在外院行乙状结肠造疹术。术后两个月曾在我院放疗。肠镜检查距肛I’J 10 cm可见环形肿瘤,肠腔狄yB,好腔直径 0．5 cm,肠镜不能通过。病理检查为直肠腺癌l级。本次人院前 121。下腹部剧烈疼痛,进行性加蚤,很快波及全腹。全腹压拥,反跳痛,肌紧张,中毒性休克。腹透隔下可见大量游离气体。肛查距肛门son。可触及肿瘤下极,完全堵塞肠管,急诊剖腹探查。腹腔有大量咖啡色、恶臭粪状混浊液溢出。乙状结肠为单腔造痰,乙状结肠远端? Example 1: Male, 49 years old, was diagnosed with acute appendicitis four months ago due to pain in the right lower abdomen. Hepatic episodes of the colon were found in an external appendectomy, fixed and unresectable, and an ileal terminal transverse colon anastomosis was performed. Esophageal varices were found in the upper gastrointestinal fistula and obstruction was observed in the horizontal duodenum. After exploratory laparotomy, liver cirrhosis, splenomegaly, and a small amount of ascites were found. The colonic liver had 8 cm X 5 cm X 5 cm tumors, invasion, and ten parts of the intestine, fixed, unremovable, and gastrojejunostomy. During the surgery, when the biopsy was taken at the edge of the tumor, the wall of the colon was inadvertently damaged, resulting in perforation of the colon. It is proposed to perform resection of the ascending colon and impede the coagulation mechanism of the prisoner. When there is more bleeding in the ascending colon, the blood pressure drops. Only the colonic hepatic song and some tumors are removed and the two ends of the colon are closed. On the 10th day after operation, the colon stumps were warmed up, peritonitis, esophageal variceal hemorrhage, and blood flowed through the ascending colon and drained from Laos. Final hemorrhagic shock, peritonitis, liver failure died. Pathological diagnosis: colon squamous cell carcinoma. Example 2: Female, 57 years old, had rectal cancer obstruction 10 months ago performed sigmoid colostomy in an external hospital. Two months after surgery, radiotherapy in our hospital. The colonoscope was visible from the anal canal I’J 10 cm. The tumor was annular, the intestine cavity was DiyB, and the good lumen diameter was 0.5 cm. The colonoscopy could not pass. Pathological examination for rectal adenocarcinoma l. This time before the person 121. Severe lower abdominal pain, progressive twisting, and soon spread to the entire abdomen. Abdominal pressure, rebound tenderness, muscle tension, toxic shock. A large amount of free gas can be seen under the peritoneal dialysis. Anal scan from the anus son. Can touch the lower pole of the tumor, completely block the bowel, emergency exploratory laparotomy. Abdominal cavity has a lot of brown color, stench turbid fluid overflow. The sigmoid colon is a single cavity fistula, distal to the sigmoid colon?