Korean J Pancreas Biliary Tract.  2017 Jul;22(3):147-151. 10.15279/kpba.2017.22.3.147.

Development of Cholangiocarcinoma Arising from Remnant Intrapancreatic Cyst 15 Years after Choledochal Cyst Excision

Affiliations
  • 1Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
  • 2Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
  • 3Division of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. mhkim@amc.seoul.kr

Abstract

Among complications of choledochal cysts, malignant transformation is most concerning and management of choledochal cyst now includes complete cyst excision, whenever possible. In cases of choledochal cyst associated with pancreaticobiliary maljunction like our case, cholecystectomy along with the resection of dilatated bile duct and the biliary diversion are generally performed. However, incomplete cyst excision can result in malignant transformation within the remnant cyst. We present the case of cholangiocarcinoma arising from remnant intrapancreatic cyst 15 years after choledochal cyst excision in a patient with Todani type 1 choledochal cyst associated with pancreaticobiliary maljunction. We learn from the case that a careful long-term follow-up is needed in patients with choledochal cysts if residual cyst is remained after excision.

Keyword

Choledochal cyst; Cholangiocarcinoma; Pancreatic cyst

MeSH Terms

Bile Ducts
Cholangiocarcinoma*
Cholecystectomy
Choledochal Cyst*
Follow-Up Studies
Humans
Pancreatic Cyst
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