Primary hyperaldosteronism CT scan Findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Syed Hassan A. Kazmi BSc, MD [2]

Overview

CT scan may aid in visualizing adrenal adenomas for lesions that are amenable to surgery.

CT scan

Adrenal adenomas may display the following features on CT scanning:

• Aldosteronomas are homogeneous and hypodense.
• The signal intensity may be near to <10 HU.
• No contrast enhancement
• Non-calcified

If CT findings are negative, selective adrenal venous sampling for aldosterone or a dexamethasone suppressed iodocholesterol adrenal scan may identify the tumor.