<prompt> All the following are causes of acute pancreatis except -Gall stoneAlcoholHemachromatosisHypercalcemia  <response>: Ans. is c i.e., HemochromatosisCauses of Acute PancreatitisCommon causes Gallstones including microlithiasis - most commonHyperiglyceridemiaEndoscopic retrograde cholangiopancreatography ERCP, especially after biliary manometry.Trauma especially blunt abdominal traumaPostooperative abdominal and nonabdominal operationDrugs L-asparginase, thiazide diuretics, frusomide, estrogens, azathioprime, 6-mercaptopurine, methyldopa, sulfonamide, tetracyclin, valproic acid, anti-HIV medicacationsSphincter of Oddi dysfunctionUncommon causesVascular causes and vasculitis ischemic-hypoperfusion states after cardiac surgeryConnective tissue disorders and thrombotic thrombocytopenic purpura TTPCancer of the pancreas HypercalcemiaPeriampullary diveiculum Pancreas divisumHereditary pancreatitis Cystic fibrosisRenal failureRare causesInfections mumps, coxsackievirus, cytomegalovirus, echovirus, parasites.Autoimmune i.e., Sjogrens syndromeCauses to consider in patients with recurrent bouts of acute pancreatitis without an obvious etiologyOccult disease of the biliary tree or pancreatic ducts, especially microlithiasis,sludge Drugs Pancreaticcancer IdiopathicHyperiglyceridemia Sphincter of Oddi dysfunctionPancreas divisum Cystic fibrosis 