![]() MRI is commonly reserved for those equivocal cases on CT and confirms fluid within the cyst (bright T2 signal) 6. However on post-contrast CT adrenal adenomas tend to enhance, whereas cysts do not 5. Small adrenal cysts may be difficult to differentiate from adrenal adenomas on unenhanced CT as they may both have densities in the pure fluid range, i.e. Usually thin-walled cystic lesions with anechoic content and posterior beam enhancement. ![]() including adult polycystic kidney disease (single case report) 4.PathologyĪdrenal cysts can be divided into four categories 1-3: Functional adrenal cysts are very rare 7. Patients can present with pain or swelling, although a significant portion (~40%) are incidental findings 1,3. Adrenal cysts are reported to be rare with an incidence of <1% 1.
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