<prompt> True about Choledochal cyst isAlways extrahepaticTreatment is cystojejunostomyExcision is ideal treatmentDrainage is treatment of choice  <response>: Option A: it can be both intrahepatic and extrahepatic Option B: Treatment of choice is Roux-en-Y hepaticojejunostomy Option D: Drainage is not done Option C: Roux-en-Y hepaticojejunostomy Is the treatment of choice. So Excision of Choledochal cyst is the right answer Ref: Sabiston 20th edition Pgno :1512-1514 