缩窄性直肠癌是直肠癌中较少见的一种大体病理类型。它在病理、发病及预后等方面与其它类型直肠癌具有显著的差异性。通过对照分析表明，此种直肠癌的低分化腺癌，粘液腺癌为多见，发病年龄低，可较早占据肠全周。在根治程度方面与其它无显著差异。５年及３年生存率明显低于非缩窄型直肠癌。对此种病例应加强术后综合抗肿瘤治疗 Constricted rectal cancer is a less common pathological type in rectal cancer. It has significant differences with other types of rectal cancer in terms of pathology, morbidity and prognosis. Through comparative analysis, this type of rectal cancer is poorly differentiated adenocarcinoma, mucinous adenocarcinoma is more common, the age of onset is low, and it can occupy the entire intestine early. There is no significant difference with the others in the degree of cure. The 5-year and 3-year survival rates were significantly lower than those of non-constricted rectal cancer. Postoperative comprehensive anti-tumor therapy should be strengthened for such cases