A fluid-filled cavity resembling a cyst but lacking a wall or lining.
- Thin walled pseudocysts bulging into the stomach or duodenum can be drained endoscopically, with surgical drainage reserved for thick walled cysts and those not bulging into the bowel on endoscopy.
- However, the wall of the pseudocyst, by definition, should be composed of connective tissue devoid of epithelial lining.
- A large pseudocyst that ruptures, becomes infected, or hemorrhages requires drainage of the cyst cavity.
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