对二氢嘧啶脱氢酶缺乏引起的化疗相关性腹泻1例分析如下。1病历摘要男,59岁。以便次增多、便中带血为首发症状,肠镜取活检考虑直肠中分化腺癌,行直肠癌根治术,术后病理:(直肠)溃疡型中分化腺癌,侵及肠管壁全层,切缘阴性,肠周淋巴结(0/10)未见肿瘤生长。术后分期ⅡAT3N0M0。术后 Chemotherapy-associated diarrhea caused by dihydropyrimidine dehydrogenase deficiency is analyzed as follows. 1 medical summary male, 59 years old. In order to increase the number of secondary blood in the first symptoms, enteroscopy take biopsy consider rectal adenocarcinoma, rectal cancer radical mastectomy, postoperative pathology: (rectal) ulcerated differentiated adenocarcinoma, invasion and full-thickness , Negative margin, peritumoral lymph nodes (0/10) no tumor growth. Postoperative staging Ⅱ AT3N0M0. After surgery