患者女性,68岁。反复右下腹腹疼痛10月余。患者10个月前无明显诱因出现右下腹腹疼痛,疼痛为间断性,活动后加重,每次持续20min左右,可自行缓解;无腹泻、腹胀、恶心、呕吐症状,治疗效果欠佳。电子结肠镜检查示直肠见1枚约0.5 cm×0.6 cm息肉,广基,表面光滑(图1)。临床诊断:直肠息肉。病理检查巨检:小组织1块,大小0.3 cm×0.2 cm× Patient female, 68 years old. Repeated right lower abdominal pain more than 10 months. Patients with no obvious incentive 10 months ago, right lower quadrant abdominal pain, intermittent pain, increased activity, each lasting about 20min, can relieve itself; no diarrhea, bloating, nausea, vomiting, poor treatment. Electronic colonoscopy showed a rectal see about 0.5 cm × 0.6 cm polyps, wide base, smooth surface (Figure 1). Clinical diagnosis: Rectal polyps. Histopathological examination: a small tissue, the size of 0.3 cm × 0.2 cm ×