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总结胆总管囊肿恶变的诊治方法及其预后。1987～1996年收治成人胆总管囊肿恶变患者6例，4例在第1次手术时发现囊肿恶变，行囊肿及癌肿切除、肛肠吻合术3例，术后已分别存活1、2、7年；行囊肿及胰十二指肠切除术1例，术后21个月死于复发。2例第1次手术时未见恶变，分别行囊肿空肠引流及囊肿切除术，第2次手术时证实囊肿恶变，已不能切除，分别在术后1、6个月死亡。认为早期诊断和彻底切除胆总管囊肿是预防其恶变的关键，治疗则应尽量争取切除恶变的胆管，必要时加行胰十二指肠切除。
Summarize the diagnosis, treatment and prognosis of malignant transformation of common bile duct cysts. From 1987 to 1996, 6 cases of malignant malignant cysts of the common bile duct were treated. Four cases had malignant cysts during the first operation, and cysts and cancer resection and anorectal anastomosis were performed in 3 cases. They survived 1, 2, and 7 years after surgery respectively. Cysts and pancreaticoduodenectomy were performed in 1 patient and died of relapse 21 months after surgery. No malignant changes were found in the first operation of 2 cases. Cysts were performed for jejunal drainage and cystectomy. The second operation confirmed that the cysts were malignant and could not be removed. They died at 1 and 6 months after operation. It is believed that early diagnosis and thorough removal of common bile duct cysts are the key to prevent their malignant transformation. The treatment should strive to remove the malignant bile ducts and add pancreaticoduodenectomy if necessary.