Presentation
Abdominal distension.
Patient Data
![](https://prod-images-static.radiopaedia.org/images/51424841/a7f5c52077e0b6f7940d1d0bd30a13_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
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![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/51425034/ea2c1f8587206280065b761038ca02_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/51424841/a7f5c52077e0b6f7940d1d0bd30a13_big_gallery.jpeg)
A large cyst fills the majority of the peritoneal cavity, displacing solid organs and bowel. A smaller cyst is along the inferior liver margin.
Two sets of VP shunt tubing are present: one follows a looped course along the liver dome, and the second terminates in the large peritoneal pseudocyst.
Case Discussion
Peritoneal CSF pseudocysts are a rare complication of VP shunts, and are comprised of a fibrous, non-epithelialized wall. Treatment involves surgical/percutaneous drainage or excision. Patients can present with abdominal symptoms related to mass effect/compression, infection, or shunt malfunction.