This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
Which of the following is a contraindication for medical management of gallstones 
Select and explain. 
A. Radiopaque stones, B. Radiolucent stones, C. Normal functioning gallbladder, D. Small stones
A: Radiopaque stones
Answer: A: Radiopaque stones 
Explanation: Pre requisites for Medical treatment in gallstones Radiolucent(cholesterol) stones Stones <10mm in diameter Functioning GB Non-acute symptoms Radiopaque is a contraindication for medical management and treated surgically by cholecystectomy Ref: Sabiston 20th edition Pgno :1494