Snap Shot A 42 year-old man with a known history of chronic pancreatitis comes to your office because he says he can feel a mass in his stomach. His records show that he has a persistently elevated serum amylase and urine amylase. Introduction Cystic collection of tissue, fluid, and necrotic debris surrounding the pancreas. Associated conditions chronic pancreatitis can be found with acute pancreatitis trauma to chest (steering wheel trauma) classically occur 2-3 weeks after acute pancreatitis Fibrous capsule does not have a true epithelial lining Presentation Symptoms abdominal pain Physical exam abdominal mass Evaluation Ultrasound CT Persistent hyperamylasemia. Treatment If pseudocyst persists for 4 to 6 weeks or continues to enlarge: percutaneous drainage surgical decompression (pancreaticogastrostomy) cyst fluid is drained into the stomach or bowel. Prognosis, Prevention, and Complications Can become infected and lead to peritonitis.