患者男，６６岁。因仅复腹泻，便血１年再发１０天入院。１年前出现解粘液脓血便或暗红色血便，大便干稀交替出现，阵性下腹部隐痛。诊断“菌痢”，传染科治疗半月，症状未缓解，经外科肛指检查发现直肠内有大量大小不等葡萄状包块，肠镜发现全结肠粘膜均有大小不等葡萄状包块? Male patient, 66 years old. Due to only double diarrhea, blood in the stool was admitted to the hospital for another 10 days in 1 year. A year ago, there was phlegm and blood in the stool, or dark red bloody stools, alternating with dry and thin stools, and tracheal lower abdomen pain. The diagnosis of “bacteriophage”, infectious disease treatment for half a month, the symptoms did not ease, the examination of the anus through the surgical found that there are a large number of grape mass in the rectum, colonoscopy found that the entire colon mucosa have varying sizes of grape mass?