Copyright ©The Author(s) 2015.
World J Gastroenterol. Nov 7, 2015; 21(41): 11842-11853
Published online Nov 7, 2015. doi: 10.3748/wjg.v21.i41.11842
Table 1 Revised Atlanta classification (2012) of pancreatic/peripancreatic fluid collections
Type of pancreatic or peripancreatic fluid collectionEtiologyCapsuleSpecific features
Acute peripancreatic fluid collection, APFC ≤ 4 wk after onset of acute interstitial-edematous pancreatitis-Homogeneous, liquid, infection +/-, no features of a pseudocyst, usually resolves spontaneously
Pancreatic pseudocyst, PPC> 4 wk after onset of acute interstitial-edematous pancreatitis+Round/oval, Liquid, no non-liquid contents, persistent
Acute necrotic collection, ANCAcute necrotizing pancreatitis-Heterogeneous, liquid and necrotic contents, usually resolves spontaneously
Walled-off pancreatic necrosis, WOPN> 4 wk after onset of necrotizing pancreatitis+Heterogeneous, liquid and necrotic contents, infection +/-