Computed Tomography (CT) scan in axial section through the abdomen of a 45 year old patient, showing enlargement of the pancreas (dark grey, at upper right) in pancreatitis. Pancreatitis occurs when the pancreatic tissue is being digested by its own enzymes, commonly caused by alcohol abuse or biliary tract disease. The large liver (grey, at left) and rounded kidneys (at lower left and right) are seen.