男,43岁。近3天来便后肛门外脱出一肿物,疼痛剧烈,排便、坐、走、咳嗽等均感疼痛而致坐卧不安。最可能的诊断是A.肛管癌脱出B.血栓性外痔C.直肠脱...

作者: rantiku 人气: - 评论: 0
问题 男,43岁。近3天来便后肛门外脱出一肿物,疼痛剧烈,排便、坐、走、咳嗽等均感疼痛而致坐卧不安。最可能的诊断是
选项 A.肛管癌脱出 B.血栓性外痔 C.直肠脱垂 D.混合痔 E.直肠息肉脱出
答案 B
解析

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