Description

Ishikawa et al graded pancreatitis based on the extension of fluid collections in the retroperitoneum as seen on imaging studies. These grades correlate with disease severity and the imaging studies can be done without contrast enhancement. The authors are from several medical centers in Osaka, Japan.


 

Patient selection: acute pancreatitis

 

Imaging Studies: CT without contrast enhancement

Retroperitoneal Fluid Collections

Grade

none

0

confined to anterior pararenal space OR in the retromesenteric plane adjacent to the anterior pararenal space

I

spread along the retromesenteric plane into the lateroconal and/or retrorenal planes

II

caudal spread into the combined interfascial plane

III

spread into subfascial plane

IV

direct intrusion into the posterior pararenal space through the lateroconal, retrorenal and subfascial planes

V

 

where:

• Examples of these findings are shown in Figures 1 to 5.

 

Grade

Mortality Rate

I, II or III

0%

IV or V

39%

 


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