结肠罕见恶性肿瘤的诊断和治疗天津市滨江医院（３０００４１）吴菲结肠少见的恶性肿瘤，起源于上皮、结缔组织、血管和淋巴。绝大多数是良性肿瘤恶变的结果。很多症状极为相似，诊断非常困难，治疗棘手，恶性度高，多数病人５年生存率低于腺癌。１恶性类癌多发生在盲肠或... Diagnosis and treatment of rare malignant tumors of the colon Tianjin Binjiang Hospital (300041) A rare malignant tumor of the colon of Wu Fei originates from the epithelium, connective tissue, blood vessels, and lymph. The vast majority are the result of malignant transformation of benign tumors. Many of the symptoms are very similar, the diagnosis is very difficult, the treatment is intractable, and the degree of malignancy is high. The 5-year survival rate of most patients is lower than that of adenocarcinoma. 1 malignant cancer mostly occurs in the cecum or ...