论文部分内容阅读
大肠息肉是指位于大肠粘膜腔面的球形或卵圆形肿块。它包括瘤性和非瘤性息肉两大类。前者具有恶变潜能,可再分为管状、绒毛状及混合性腺瘤三种。后一类计有炎性、幼年性、增生性、化生性、良性淋巴瘤性、缺陷瘤性、脂瘤性及炎性肠病之假性息肉等,因不具备恶变潜能,故不在本文讨论之列。腺瘤—癌顺序大肠腺瘤和大肠腺癌之间的关系很久就引起了人们的注意。早在1951年,Jackman和Mayo就提出“腺瘤—癌顺序”学说,认为大肠癌是由腺
Colorectal polyps are spherical or oval masses located in the lumen of the large intestine mucosa. It includes two major categories of neoplastic and non-neoplastic polyps. The former has malignant potential and can be further divided into three types of tubular, villous and mixed adenomas. The latter category includes inflammatory, juvenile, proliferative, metaplastic, benign lymphoma, deficient tumor, lipoma and pseudopolyposis of inflammatory bowel disease. Because it does not have malignant potential, it is not discussed in this article. Listed. The relationship between adenomas-carcinoma sequential colorectal adenomas and colorectal adenocarcinomas has long attracted attention. As early as 1951, Jackman and Mayo proposed the “adenomas-cancer sequence” hypothesis that colon cancer is caused by glands.