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先天性胆总管囊肿（ｃｏｎｇｅｎｉｔａｌｃｈｏｌｅｄｏｃｈａｌｃｙｓｔ，ＣＣＣ）癌变的发生率较高，可以认为它是一种癌前期病变。业已证明胆胰管合流异常是ＣＣＣ的主要病因之一，也是ＣＣＣ容易发生癌变的原因［１］，ＣＣＣ的现代外科处理就是建立在这种认识的基础之上
The incidence of congenital choledochal cyst (CCC) cancer is higher, and it can be considered as a precancerous lesion. It has been proved that the anomaly of cholangiopancreatic duct confluence is one of the main causes of CCC, and it is also the reason of CCC prone to canceration [1]. The modern surgical treatment of CCC is based on this understanding.