Adrenal pseudocyst
Adrenal pseudocysts account for ~40% of adrenal cysts and are more likely than simple adrenal cysts to be symptomatic.
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Pathology
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.
Radiographic features
Adrenal pseudocysts appear as a simple cyst or may have a complicated appearance (i.e. septations, blood products, or a soft-tissue component).
CT
Calcification may be present 4. Usually, there is no enhancement post contrast.
Differential diagnosis
Imaging differential considerations include:
- cystic adrenal neoplasm: often has an enhancing component
See also
Related Radiopaedia articles
Adrenal pathology
- adrenal gland anatomy
-
adrenal lesions
- adrenal adenoma
- adrenal metastasis
- pheochromocytoma
- adrenal cortical hyperplasia
- adrenal cortical carcinoma
- adrenal granulomatous disease
- adrenal myelolipoma
- neuroblastoma
- ganglioneuroblastoma
- ganglioneuroma
- adrenal hemorrhage
- adrenal abscess
- adrenal hemangioma
- adrenal cyst
- adrenal lymphangioma
- adrenal haemangiosarcoma
- adrenal lymphoma
- extramedullary hematopoiesis in adrenal gland
- tumors of the adrenal gland
- incidentaloma
- Management of Incidental Adrenal Masses: ACR White Paper
- differential diagnoses
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