This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Pathology
Rokitansky-Aschoff sinuses are seen in which of the following conditions? 
Select and explain. 
A. Acute cholecystitis, B. Chronic cholecystitis, C. Xanthogranulomatous cholecystitis, D. Gallbladder carcinoma
B: Chronic cholecystitis
Answer: B: Chronic cholecystitis 
Explanation: Rokitansky-Aschoff sinuses are seen in Chronic cholecystitis. It is due to outpouchings of mucosal epithelium through the wall of the gallbladder forming these sinuses. Can contain fragmented bill pigment stones.