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Updated: Oct 18, 2025

Author Spotlight: Advancements in Retroperitoneal Approach for Necrotizing Pancreatitis
Published on: March 15, 2024
Retroperitoneal Fat Necrosis in Response to an Episode of Acute Pancreatitis
M B Gilani1, T Akcan1, M Peterson1
1Department of Internal Medicine, Marshfield Clinic Health System-Marshfield, Marshfield, WI 54449, USA.
Abstract:
Acute pancreatitis can result in fat necrosis, typically occurring in the peripancreatic region within weeks to months, and it generally appears as a low attenuation collection, with minimal heterogeneity. There are no specific imaging features that can diagnose retroperitoneal fat necrosis which may imitate other entities including certain malignancies, which may lead to invasive studies for diagnosis. Herein, we present a case of extensive retroperitoneal fat necrosis beyond the peripancreatic region that developed 10 days after an episode of acute pancreatitis.
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