<prompt> Which of the following is not an indication for cholecystectomy:70 year old male with symptomatic gall stone20 years old male with sickle cell anemia and symptomatic gallstones65 year old female with a large gallbladder polyp55 year old with an asymptomatic gallstone  <response>: Answer is D 55 year old with an asymptomatic gallstone: Prophylactic cholecystectomy is not warranted in an asymptomatic patient. 