system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
All of the following are the risk factors for carcinoma gallbladder except:
assistant
The correct answer is  Risk Factors of Carcinoma Gallbladder Gallstones >3 cm Porcelain gallbladder Anomalous pancreatobiliary junction Choledochal cysts Adenomatous polyps Primary sclerosing cholangitis Obesity Salmonella typhi infection