深在性囊性结肠炎(Colitis cystica profunda)罕见。病理检查时极易误诊为粘液腺癌。本文将活检中遇见的3例报道如下。例1,女性,65岁,1月前因腹痛腹泻在某地住院治疗好转。本次以右下腹部包块于1989年10月来本院就治。钡灌:回盲部恶性肿瘤,遂行右半结肠切除,阑尼巨检无特殊。病理检查:见回盲瓣阑尾根部有一3cm×2.5cm×1.5cm包块,切面暗红、质脆粘液样变。镜下见结肠粘膜慢性炎, Deep cystic colitis (Colitis cystica profunda) is rare. When pathological examination is easily misdiagnosed as mucinous adenocarcinoma. This article reports three cases that were encountered during biopsy. Example 1, female, 65 years old, hospitalization improvement in a place due to abdominal pain and diarrhea 1 month ago. The right lower abdominal mass was treated in this hospital in October 1989. Bitter irrigation: ileocecal malignancy, right colon resection, no special monks and nuns. Pathological examination: See ileocecal valve appendix roots with a 3cm × 2.5cm × 1.5cm mass, cut dark red, crisp and mucoid changes. See under the microscope chronic inflammation of the colon,