Acute pancreatitis: A pictorial review of early pancreatic fluid collections

Figure 5 Schematic diagram of heterogeneous collections and computed tomography image of a patient. A: Schematic diagram of heterogeneous collections (acute necrotic collections) secondary to necrotizing pancreatitis. With the prolongation of the disease course, immature poorly organized walls (arrowheads) can gradually form. There are two components within necrotic collections: fat fragments and necrotic parenchymal fragments (arrows); B: A 60-year-old man with necrotizing pancreatitis. Axial contrast-enhanced computed tomography image in the venous phase shows markedly hypodense fat globules (arrows) within acute necrotic collections as well as slight enhancement of capsule (arrowheads) of collections. P: Pancreas; N: Necrosis.