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Pseudocysts do not have an epithelial lining and typically arise after an episode of adrenal hemorrhage. There is an ~7% association with malignancy (e.g. from hemorrhage into a cystic adrenal neoplasm) 6.
Adrenal pseudocysts appear as a simple cyst or may have a complicated appearance (i.e. septations, blood products, or a soft-tissue component).
Calcification may be present 4. Usually, there is no enhancement post contrast.
Imaging differential considerations include:
- cystic adrenal neoplasm: often has an enhancing component
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