Copyright ©The Author(s) 2019.
World J Clin Cases. May 6, 2019; 7(9): 1006-1020
Published online May 6, 2019. doi: 10.12998/wjcc.v7.i9.1006
Table 3 Complications of acute pancreatitis
LocalInterstitial Edematous PancreatitisDescription: Acute inflammation of parenchyma or peripancreatic tissues; Radiology: Enhancement of the pancreatic parenchyma with no signs of necrosis
Necrotizing PancreatitisDescription: Necrosis encompassing pancreatic parenchyma or pancreatic tissues; Radiology: Acute necrotic collection lacking definable wall containing variable amounts of fluid OR Walled off necrosis containing a well-defined encapsulated collection
Acute peripancreatic Fluid CollectionDescription: Homogenous collection of fluids with no distinct inflammatory walls outside pancreas containing minimal or no necrosis; Timing: Within the first four weeks after onset of interstitial edema; Radiology: Homogenous collection with fluid confined by normal fascial planes
Pancreatic PseudocystDescription: Collections of fluids that contain distinct inflammatory walls outside the pancreas containing minimal to no necrosis; Timing: After four weeks of initial onset of interstitial edematous pancrea-titis; Radiology: Clear homogenous fluid density with well-defined borders that is encapsulated
Acute Necrotic CollectionDescription: Collection of both fluid and necrosis associated with necrotizing pancreatitis; Radiology: intrapancreatic or extrapancreatic heterogenous non-liquid density of varying degrees with no definite wall
Walled Off NecrosisDescription: Encapsulated collection of pancreatic or peripancreatic necrosis that has formed a distinct inflammatory wall; Radiology: Heterogenous liquid/non-liquid density with varying loculations. The structure has a well demarcated wall that is en-tirely encapsulated
PeripancreaticThrombosisDescription: Thrombosis of splanchnic venous circulation including splenic vein, portal and/or superior mesenteric veins
PseudoaneurysmDescription: Collection of blood forming between the two most outer layer of the artery – muscularis propria and adventitia
Abdominal Compartment SyndromeDescription: Tissue edema that is secondary to aggressive fluid resuscitation, peripancreatic inflammation and ascites