<prompt> Which of the following is an exception of Courvoisiers law?Double ImpactionPoal lymphadenopathyPeriampullary CarcinomaNone of the above  <response>: Exceptions to courvoisiers Law Double impaction of stones i.e. one in the cystic duct and other in CBD. Oriental cholangiohepatitis Pancreatic calculus obstructing the ampulla of Vater Mucocele due to stone in the cystic duct 