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: Surgery
A 50 year old diabetic patient with asymptomatic gallstone (>3 cm) will be best treated by 
Select and explain. 
A. Early surgery, B. Bile salt treatment, C. ESWL, D. Waiting till it becomes symptomatic
A: Early surgery
Answer: A: Early surgery 
Explanation: Prophylactic cholecystectomy should be conducted in this patient even though it is a silent gallstone with no symptoms as he is a diabetic & stone size is more than 3 cm.Such patients are at increased risk of complications from gallstones. Reference:Bailey & Love's sho practise of surgery,25 th edition,page no:1121.