This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
In case of choledochal cyst, side-to-side choledochoduodenostomy is NOT recommended because of the risk of: 
Select and explain. 
A. Malignancy, B. Pancreatitis, C. Recurrent Cholangitis, D. Gall stones
C: Recurrent Cholangitis
Answer: C: Recurrent Cholangitis 
Explanation: The treatment for choledochal cyst is complete excision with Roux-en-Y hepaticojejunostomy. The duodenal end of the bile duct should be oversewn without injury to the anomalous entry of the pancreatic duct, limiting the amount of residual biliary tissue at risk for malignancy. Side-to-side choledochoduodenostomy is not recommended because it is followed by a high incidence of stricture of the anastomosis and recurrent cholangitis. Cholecystectomy is always performed. Ref: Albanese C.T., Sylvester K.G. (2010). Chapter 43. Pediatric Surgery. In G.M. Dohey (Ed), CURRENT Diagnosis & Treatment: Surgery, 13e.