论文部分内容阅读
直肠是大肠癌最好发的部位,在直肠癌中约70%发生于中低位直肠。在做组织病理学诊断时,需注意以下几点:(1)上皮内瘤病的概念和在与手术治疗的关系,重点介绍了胃肠道上皮瘤形成的Vinna分类和临床处理;(2)组织病理学的预后指标,如手术切缘、直肠外侵犯、局部淋巴结转移、血管和神经束膜的侵犯;(3)大肠癌遗传学,包括遗传性非息肉性结直肠癌和家族性腺瘤性息肉病。
Rectal cancer is the best hair site, about 70% of rectal cancer occurred in the low rectum. In the diagnosis of histopathology, should pay attention to the following points: (1) the concept of intraepithelial neoplasia and the relationship with the surgical treatment, focusing on the Vinna classification and clinical treatment of gastrointestinal epithelial tumors; (2) Histopathological prognostic indicators such as surgical margins, extra-rectal invasion, local lymph node metastases, vascular and perineural invasion; (3) colorectal cancer genetics, including hereditary nonpolyposis colorectal cancer and familial adenomatous Polyposis.