患者男,74岁。因出现间歇性脓血便9个月,近日感大便困难于1987年9月9日入院。自患病以来,无明显腹痛,无发烧,只是偶而大便带有少许脓血,并且逐渐出现大便困难,只能解稀便。体检:肛门指检距肛缘约4—5cm处可触及肿块,呈环状增生,质地中等,中间肠腔可容指尖,指套极少量血染。 Male patient, 74 years old. Due to intermittent pus and blood for 9 months, the recent sense of difficulty in stool in September 9, 1987 admission. Since the onset of the disease, no obvious abdominal pain, no fever, only occasional stool with a little sepsis, and the gradual emergence of stool difficulties, only solution loose stools. Physical examination: anus from the verge of the verge about 4-5cm palpable mass, was ring-like hyperplasia, medium texture, the middle intestine can accommodate fingertips, a very small amount of bloodstains refers to sets.