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大 肠,.,.,溃疡性结肠炎,.,.,.,.,结肠 Crohn病,.,.,.,.,.,结肠结核,.,.,.,.,进展期大肠癌,增生型：,.,.,.,.,进展期大肠癌,溃疡型：,.,.,.,进展期大肠癌,浸润型：,.,.,.,大肠癌CT,.,.,.,.,.,淋巴瘤,.,.,.,结肠憩室,.,.,.,结肠息肉,.,.,.,先天性肛门直肠畸形(congenital anorectal anomalies),先天性消化道畸形的首位 分四型：I：肛门直肠交界处狭窄II：肛门膜闭锁，肛膜存留未破III：肛门闭锁，直肠远端与肛窝间有组织相隔IV：直肠闭锁，肛门与肛管正常,.,.,先天性巨结肠,.,.,.,谢 谢,