A 19-year-old man with a history of Peutz-Jeghers syndrome (PJS) and two previous partial small bowel resections because of intussusception presented with lower abdominal pain. Computed tomography (CT) showed concentric multilayer and cord-like structures in the transverse colon. Colo-colonic intussusception was suspected and he was hospitalized. After two therapeutic enemas were unsuccessful, a colonoscopy was performed. The intussusception was reduced and a 40-mm transverse colon polyp with a thick stalk was resected. After the procedure, his abdominal pain was relieved and he was discharged on the sixth hospital day. This case and several previous reports suggest that PJS polyps with tumor diameter exceeding 30 mm and location in the transverse or sigmoid colon can cause intussusception. Endoscopic treatment should be considered for these lesions.

中文翻译：

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黑斑息肉综合征患者结肠结肠套叠的内镜治疗。

一名 19 岁男性，有黑斑息肉综合征 (PJS) 病史，曾因肠套叠接受过两次小肠部分切除术，并出现下腹疼痛。计算机断层扫描 (CT) 显示横结肠中的同心多层和索状结构。怀疑结肠肠套叠，并入院治疗。两次治疗性灌肠失败后，进行了结肠镜检查。缩小肠套叠，切除40毫米粗柄横结肠息肉。手术后，他的腹痛减轻，并于住院第六天出院。本病例和之前的几篇报道提示，肿瘤直径超过30毫米且位于横结肠或乙状结肠的PJS息肉可引起肠套叠。对于这些病变应考虑内镜治疗。