The anterior pararenal space is the part of the retroperitoneum between the posterior parietal peritoneum and the anterior layer of the renal fascia. It contains the pancreas, the second to fourth parts of the duodenum and the ascending and descending colon.
| Location | Retroperitoneum, in front of the renal fascia. |
|---|---|
| Boundaries |
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| Contents |
Contains the retroperitoneal parts of the gut and pancreas.
This is the most common site of retroperitoneal fluid, usually from acute pancreatitis, which spreads through the space and can track along the gutters. Perforations of the retroperitoneal duodenum or colon also leak here, often with few early signs.
Inflammatory fluid from acute pancreatitis spreading through the anterior pararenal space, which may become infected or form a pseudocyst.
A tear of the duodenum from trauma or endoscopy leaking into this space, sometimes seen as air around the right kidney on imaging.
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