Diagnosis of autoimmune pancreatitis with cholesterol granuloma mimicking intraductal papillary-mucinous carcinoma: A case report.

•Pancreatic cysts are often diagnosed as intraductal papillary-mucinous carcinoma.•Cholesterol granuloma (CG) in the pancreas is rare.•This is the first report of CG-associated autoimmune pancreatitis (AIP).•AIP with CG should be considered in pancreatic cysts involving nodular lesions.•This would help avoid unnecessary surgery and improve patient outcomes.