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Conn Adenoma — Detailed Management

Comprehensive evaluation and management of an aldosterone-producing adrenal adenoma in patients with primary aldosteronism, including confirmatory testing, lateralization, and surgical or medical therapy.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Endokrinoloji department. Book Appointment →

What is Conn Adenoma — Detailed Management?

A Conn adenoma (aldosterone-producing adenoma) is a benign unilateral cortical neoplasm that autonomously secretes aldosterone and accounts for about one third of cases of primary aldosteronism in surgical series.

Detailed management starts with case confirmation by aldosterone-to-renin ratio screening followed by a confirmatory test (oral salt loading, saline infusion, fludrocortisone suppression, or captopril challenge) and adrenal CT imaging.

When surgery is considered, adrenal venous sampling is the gold standard for distinguishing unilateral disease from bilateral idiopathic hyperaldosteronism; laparoscopic unilateral adrenalectomy can normalize blood pressure and electrolytes in well-selected patients.

Symptoms

Resistant hypertension uncontrolled by three antihypertensive drugs at adequate doses
Spontaneous or diuretic-induced hypokalemia
Muscle weakness, cramps, or paresthesia related to hypokalemia
Polyuria and polydipsia from hypokalemia-induced nephrogenic diabetes insipidus
Headache, palpitations, and increased cardiovascular events compared with essential hypertension

Risk Factors

Hypertension diagnosed before the age of 40 with no clear family history
Hypertension associated with adrenal incidentaloma
Severe or treatment-resistant hypertension
Stroke or cerebrovascular event before the age of 40
First-degree relative with primary aldosteronism

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Persistently elevated blood pressure on at least three antihypertensive drugs
  • Documented hypokalemia, especially when persistent or recurrent
  • Adrenal incidentaloma combined with hypertension
  • Sudden worsening of long-standing hypertension or new-onset hypertension before age 40

Treatment Methods

01
Confirmatory biochemical testing followed by adrenal venous sampling to confirm unilateral aldosterone hypersecretion
02
Laparoscopic unilateral adrenalectomy for confirmed Conn adenoma when surgery is feasible
03
Mineralocorticoid receptor antagonist therapy with spironolactone or eplerenone in non-surgical candidates and during the perioperative preparation
04
Optimization of antihypertensive regimen and potassium replacement before surgery
05
Postoperative monitoring of blood pressure, electrolytes, and renin-aldosterone profile to assess biochemical and clinical cure

Which Department to Visit?

You can visit our Endokrinoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.