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Acute pancreatitis

Some etiologies
Clinical diagnosis

Needs at least 2 of the 3 below:

Revised Atlanta Classification (2008)

Two morphological types: interstitial edematous and necrotising pancreatitis 

Edematous pancreatitis

Necrotising pancreatitis

Clinical grading using Ranson’s, APACHE-II, BISAP score

Modified CT severity index currently used which has better correlation with clinical outcome. CT scoring system DOES NOT supersede clinical scoring systems. 

Prognostic indicatorPoints
Pancreatic inflammation
Normal pancreas0
Intrinsic pancreatic abnormalities with or without inflammatory changes in peripancreatic fat 2
Pancreatic or peripancreatic fluid collection or peripancreatic fat necrosis 4
Pancreatic necrosis
None 0
<30% of parenchyma 2
>30% of parenchyma4
Extra pancreatic complications (>1 of pleural effusion, ascites, vascular or parenchymal complications, GI tract involvement)2
Classification of disease severityPoints (sum)
Mild 0-2
Moderate 4-6
Severe 8-10
Imaging in acute pancreatitis 

Interstital edematous pancreatitis 

Necrotising pancreatitis

Walled-off necrosis


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