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大肠包括结肠、直肠及肛管三个部分,大肠癌中,直肠癌发病比例最高,约占大肠癌的60％,结肠各段癌瘤居次位,肛管癌最少见,仅占大肠癌的3％以下。结肠及直肠癌是我国较常见的恶性肿瘤之一。远在汉代我国古籍《金匮要略》及明代的《灵枢经》中曾见到有符合本症的粪便带血及大肠癌合并结肠部分梗阻症状的描述。按大肠癌的巨体形态,可分为溃疡
The large intestine includes the three parts of the colon, rectum and anal canal. In colorectal cancer, the incidence of rectal cancer is the highest, accounting for about 60% of colorectal cancer, the colon cancer is the secondary cancer, the anal canal cancer is the least, only the colorectal cancer. 3% or less. Colon and rectal cancer are one of the more common malignancies in China. Far in the Han Dynasty, the ancient book “Golden Chamber” and the Ming Dynasty “Ling Shu Jing” had met the description of the disease in the stool with blood and colorectal cancer with colonic obstruction symptoms described. According to the shape of the giant colorectal cancer, it can be divided into ulcers