This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Incidence of gall stone is high in: 
Select and explain. 
A. Paial hepatectomy, B. Ileal resection, C. Jejunal resection, D. Subtotal gastrectomy
B: Ileal resection
Answer: B: Ileal resection 
Explanation: Answer is B (Ileal resection) Ileal resection is associated with interruption of enterohepatic circulation of bile sults thereby decreasing the ratio of bile salts to cholesterol within the bile (Lithogenic bile)