An increased incidence of cholangiocarcinoma is seen in all of the following except -: (A) Hydatid cyst of liver, (B) Polycystic disease of liver, (C) Sclerosing cholangitis, (D) Liver flukes
Answer is A. Ans. is 'a' i.e., Hyadatid cyst of liver Polycystic disease of liver is a predisposing factor for cholangiocarcinoma