Acute pancreatitis: A pictorial review of early pancreatic fluid collections

Figure 2 Schematic diagram of acute necrotic collections and computed tomography of a patient. A: Schematic diagram of acute necrotic collections within 4 wk of onset of necrotizing pancreatitis. The term “acute necrotic collections” is diagnosed only in necrotizing pancreatitis patients; B: A 56-year-old man with necrotizing pancreatitis. Axial contrast-enhanced computed tomography image in the venous phase shows a large area of necrosis (asterisks) in the pancreatic body and tail; therefore, a lesser omental sac collection (arrows) should be diagnosed as acute necrotic collections. ANCs: Acute necrotic collections; P: Pancreas; N: Necrosis.