胰腺囊性肿瘤不仅发病率低，而且多为良性病变。复发多发生于胰腺黏液性腺癌和胰腺导管内乳突状黏液癌，前者恶性程度高，后者发展缓慢。术后定期的随访和影像学检查是诊断的关键因素和方法，同时影像学的可切除性评估是外科再次手术的重要条件，手术是病人获得根治性治疗的惟一方法。不过成功再次手术切除依肿瘤的不同、发现的早晚有明显差异，复发性胰腺黏液性腺癌再次手术切除率极低，而胰腺导管内乳突状黏液癌再次手术切除的可能性较大。

Recurrence of cystic neoplasms of the pancreas: diagnosis and treatment        LIU Xu-bao, CHEN Yong-hua. West China Hospital of Sichuan University，Chengdu610041，China
Corresponding author：LIU Xu-bao，E-mail：xbliu@medmail.com.cn
Abstract    The incidence of pancreatic cystic neoplasms is low, most of these tumors present benign prognosis. Pancreatic mucinous adenocarcinoma and intraductal papillary mucinous cystadenocarcinoma often present recurrence, the former presents high degree of malignancy and the latter often progresses slowly. It is critical to regular imaging follow-up for detection of the recurrence and assessment the resectability. Reoperation is the only way to radical re-resection of the recurrence lesions. However, the success of radical re-resection depends on pathological type of primary tumor and the duration of tumor recurrence. There are very low chance to re-resect the recurrence of pancreatic mucinous adenocarcinoma. On the contrary, it is more likely to re-resect the recurrence of pancreatic intraductal papillary mucinous carcinoma.