The most common cause of exocrine pancreatic insufficiency in dogs is chronic acinar atrophy, and second is chronic pancreatitisIn the case of cats, the latter is more common Other causes of exocrine pancreatic insufficiency in dogs are tumors of the pancreas or outside of it that cause an obstruction in the pancreatic duct Genetic predisposition of the diseaseAuthor information (1)School of Veterinary Medicine, University of Bristol, UK iabattersby@bristolacuk BACKGROUND A commercially available ELISA kit for fecal elastase measurement can be used in the diagnosis of exocrine pancreatic insufficiency (EPI) in dogs However, other causes of diarrhea also may affect fecal elastase concentrationDogs with Exocrine Pancreatic Insufficiency (EPI) have a malabsorption and maldigestion condition where the pancreas is no longer producing enough pancreatic enzymes to digest fats, carbohydrates and proteins Because of this, dogs (and also cats) will often present with unexplained weight loss, dia