Pancreatitis Fluid Collections

(Revised Atlanta Classification)

Disclaimer: The author makes no claims of the accuracy of the information contained herein; this information is for educational purposes only and is not a substitute for clinical judgment.

Duration Fluid only Solid ± fluid
Acute (<4 wks w/o defined wall) Acute peripancreatic fluid collection (APFC) Acute necrotic collection (ANC)
Chronic (≥4 wks w/defined wall) Pseudocyst Walled off necrosis (WON)

Banks PA, Bollen TL, Dervenis C et al. Classification of acute pancreatitis - 2012: revision of the Atlanta classification and definitions by international consensus. Gut 2013; 62:102-111.

Thoeni, RF. The revised Atlanta classification of acute [ancreatitis: its importance for the radiologist and its effect on treatment. Radiology 2012; 262:751-764.