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%
To read more or access our algorithms and calculators, please log in or register.
