This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gallstone Disease, Subject name: Surgery
All are complications of gall stones except: 
Select and explain. 
A. Diverticulosis, B. Acute cholangitis, C. Mucocele, D. Empyema of Gallbladder
A: Diverticulosis
Answer: A: Diverticulosis 
Explanation: Ans: A (Diverticulosis) Ref: Bailey and Love's Short Practice of Surgery 25th Edition & Schwartz's Principles of Surgery, 9th EditionExplanation:Complications of Gall StonesAcute and Chronic cholecystitisJaundiceMucocele of GBEmpyema of GBGangrene of GBSepsisCa Gall BladderCholangitisPancreatitisiMirrizi syndrome: Biliary duct obstruction secondary to stone impaction in hartman's pouch of GBGallstone ileus