CASE 19 History: A 69-year-old woman with epigastric pain has now been in the hospital for 10 days. 1. Which of the following should be included in the differential diagnosis for this patient? (Choose all that apply.) C. Pancreatic mucinous cystadenoma D. Pancreatic serous cystadenoma 2. What is the most common cause of acute pancreatitis (in Western society)? 3. Which of the following signs on contrast-enhanced CT indicates pancreatic necrosis?