Although the incidence
of biliary carcinoma associated with choledochal cyst is high, there are
extremely rare reports about cancer development in the remaining intrapancreatic
biliary tract in patients who underwent primary excision of the choledochal
cyst. The authors present a case of carcinoma associated with the remnant
intrapancreatic biliary tract in a 39 year-old woman, 17 years after the
initial excision of a choledochal cyst with Roux-en-Y hepaticojejunostomy.
Long-term follow-up may be recommended even in patients who have undergone
excisional surgery for choledochal cyst, because it is possible that cancer
associated with the intrapancreatic biliary tract may develop.
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