直肠瘤怎么办...-名医在线

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病情分析：直肠瘤意味着如手术切除，有可能保不住肛门而要在下腹部造一个人工肛门。因为肠癌的根治手术，原则上要求远端切缘距肿癌的出缘要在2~3cm以上，而要保住肛门括约肌的功能，其切缘距齿状线需1.5~2cm。所以，低位直肠癌的根治术，常常需要切除乙状结肠远端、全直肠、肛提肌、肛管、肛门括约肌、肛门周围3~5cm的皮肤及直肠周围的淋巴结等

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