Background: Adrenal cysts are uncommon, being even more scarce functional cysts with 3 cases reported in the literature
Purpose: To present a clinical case of a patient with hyperaldosteronism associated with an adrenal cyst.
Case presentation: A 39-year-old male patient with hypertension since the age of 38. It was decided to perform studies of secondary hypertension, with a positive finding of primary hyperaldosteronism in initial evaluation. Biochemical confirmation was performed with a solution suppression test with subsequent discovery of low-density left adrenal adenoma on an abdomen contrasted CT scan. The patient underwent laparoscopic adrenalectomy, achieving biochemical cure according to the evaluation conducted 4 months postoperatively, without the need for antihypertensive medication.
Discussion and conclusion: Adrenal cysts usually present unilaterally with different histopathological categories, and are usually nonfunctional. Primary hyperaldosteronism is a common cause of secondary hypertension and may be associated with cardiovascular complications. Diagnosis is based on measurement of aldosterone and renin in blood and biochemical confirmation, with subsequent localization evaluation including adrenal vein catheterization, in most cases, to determine the underlying cause.
Our patient is the 4th case published in the literature on a cyst with biochemically confirmed hormonal overproduction, which is important not to rule out the presence of cysts as a possible etiology of hormone production that, although it is not the most common, it is possible to find them.
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