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直肠结肠息肉在临床或病理解剖相当多见。据文献统计凡年龄45岁以上者,约有10%的人在结肠中找到一至数个息肉。国外文献报导约占尸解病人9%,各地统计数字都很接近。息肉之好发部位多在直肠,次为乙状结肠,男女发病率大致相等。国内对此病的报导不多,1957年余亚雄氏曾报告275例,但只限于小儿的结肠息肉。结肠息肉以腺型息肉为多见,约占所有息肉60%以上,有1%发生癌变,但若为绒毛腺型息肉其癌变率可达30—40%。
Rectal colon polyps are quite common in clinical or pathological anatomy. According to literature statistics, about 10% of people over the age of 45 find one to several polyps in the colon. Foreign literature reported about 9% of autopsy patients, and the statistics are very close. The predilection sites of polyps are mostly in the rectum, and the second is the sigmoid colon. The incidence of men and women is roughly equal. Domestic reports of this disease are few, Yu Yaxiong had reported 275 cases in 1957, but only in children with colon polyps. Colon polyps are more common with glandular polyps, accounting for more than 60% of all polyps, and 1% of cancerous lesions, but if it is a villous gland polyp, its cancerous rate can reach 30-40%.