Pancreatitis imaging: Severity Index and Nomenclature of Collections

Calculate the Mortele's Modified CT Severity Index for pancreatitis, and properly name the pancreatic collections based on the Atlanta Classification.

Pancreatitis

Pancreatic and Peripancreatic Collections

When was patient's onset of pain?
Which one best describes the collection?
Which one best describes the collection?
This collection should be called an

Acute peripancreatic
fluid collection

and is associated with interstitial edematous pancreatitis
This collection should be called a

Pseudocyst

and is associated with interstitial edematous pancreatitis
This collection should be called an

Acute necrotic collection

and is associated with necrotizing pancreatitis
This collection should be called a

Walled-off necrosis

and is associated with necrotizing pancreatitis

Modified CT Severity Index

How does the pancreas look?
Is there CT evidence of pancreatic necrosis?
Is there any evidence of extrapancreatic complications*?
*Including pleural effusion, ascites, vascular complications, parenchymal complications, or gastrointestinal tract involvement
which indicates

radiologically mild pancreatitis

which indicates

radiologically moderate pancreatitis

which indicates

radiologically severe pancreatitis

Reference:
  1. Foster, B. R., Jensen, K. K., Bakis, G., Shaaban, A. M., & Coakley, F. V. (2016). Revised Atlanta Classification for Acute Pancreatitis: A Pictorial Essay. Radiographics : a review publication of the Radiological Society of North America, Inc, 36(3), 675–687. https://doi.org/10.1148/rg.2016150097
  2. Mortele, K. J., Wiesner, W., Intriere, L., Shankar, S., Zou, K. H., Kalantari, B. N., Perez, A., vanSonnenberg, E., Ros, P. R., Banks, P. A., & Silverman, S. G. (2004). A modified CT severity index for evaluating acute pancreatitis: improved correlation with patient outcome. AJR. American journal of roentgenology, 183(5), 1261–1265. https://doi.org/10.2214/ajr.183.5.1831261