患者,女,38岁,因便秘10余年入院。患者10余年前无明显诱因出现便秘,3-4d解一次,黄色成形偏硬,无粘液脓血,无里急后重,无腹痛腹胀。3年前症状逐渐加重,约7-8d解便一次,性状同前,口服通便药物“膳通”后症状可缓解。去年起大便变细,偶解黑便,无粘液脓血,伴腹胀,便后腹胀缓解。肠镜检查提示肝曲处见一囊性隆起,约4.0cm×3.0cm大小,表面光滑,触之软。镜下诊断:结肠囊 Patient, female, 38 years old, hospitalized for more than 10 years due to constipation. More than 10 years ago, there was no obvious incentive for patients with constipation, 3-4d solution time, the yellow forming partial hard, no mucus and sepsis, no tenesmus, no abdominal pain and abdominal distension. 3 years ago, the symptoms gradually aggravated, about 7-8d solution once, traits with the former, oral laxative drugs “diet through” symptoms can be alleviated. Last year, the stool thinner, even black solution, no mucus sepsis, with abdominal distension, abdominal distension ease. Colonoscopy prompted a seepage of the liver song cystic uplift, about 4.0cm × 3.0cm size, smooth surface, touch the soft. Microscopic diagnosis: colon sac