CT - CT adrenal glands (non contrast)
Axial non-contrast
What are the causes of primary hyperaldosteronism?
Primary hyperaldosteronism can be due to adrenal hyperplasia (60%), adrenal adenoma (40%), glucocorticoid-remediable hyperaldosteronism (dexamethasone-suppressible hyperaldosteronism), <1%, and rare entities, such as disorders of the renin-angiotensin system (<1%)
Nodular hyperplasia of the left adrenal gland (density 5-15 HU). The right adrenal gland appears normal. Given the clinical history, this may represent an adrenal cortical adenoma causing Conn's syndrome. This may be further investigated with adrenal vein sampling and endocrinology aldosterone testing.