“…However, the overall finding of 14% (non intrahepatic) cholangiocarcinoma is comparable with most recent series (Table 5). 2,13,[20][21][22][23][24][25][26][27] The concept of treatment of extrahepatic choledochal cysts has changed in the past 20 years because of a persistent high risk of malignancy after drainage procedures. 23,27 In addition, a high rate of benign complications, mainly anastomotic strictures, of internal drainage procedures has been reported.…”