探讨肠道重复畸形的基本情况、病理与临床特点、诊断和治疗效果。

收集2016年9月份广东省人民医院泌尿外科收治的1例30岁男性患者资料，患者因"发现左侧肾上腺肿物1个月"入院，术前增强CT提示腹膜后左侧肾上腺区见圆形囊性低密度肿块，考虑左侧肾上腺囊性占位，良性，囊肿可能性大。完善检查后在我科行后腹腔镜下左侧肾上腺肿物切除术，术中冰冻病理检查提示囊性病变，未见恶性证据。

术后结合病理诊断为腹膜后肠道重复畸形，患者恢复良好，目前仍在随访当中。

腹膜后肠道重复畸形临床上罕见，临床表现不典型，影像学、实验室检查多无特异性，临床工作中易发生误诊，最终需病理明确诊断，手术完整切除为最佳治疗方式。

To explore the basic information, pathology and clinical characteristics, diagnosis and efficacy of treatment.

The data of a 30-year-old man were analyzed at the Department of Urology of Guangdong Provicial People’s Hospital with an unexpected discovery of the left adrenal mass 1 month ago. The preoperative enhanced CT showed: in the left adrenal region, a round cystic low density mass was found, which was considered to be a left adrenal cystic mass. Retroperitoneal laparoscopic resection of the left adrenal gland tumor was performed for this patient, and intraoperative frozen examination showed that it was cystic lesions, which got no evidence of malignancy.

The intestinal duplication cyst was diagnozed after operation by pathology and clinical features. The patients recovered very well, and was followed, treatment associated with the best long-term outcomes.

Retroperitoneal intestinal duplication is rare in clinical, It has atypical clinical manifestation and not specific in imaging and laboratory examinations. Therefore, it is easy to be misdiagnosed in clinical practice. The clinical pathological diagnosis will be helpful, and surgical resection is the best treatment.