Introduction: adrenal adenomas are benign tumors that may have hormone hiperproduction. Conn`s Syndrome is cause of secondary arterial hypertension due to excessive production of aldosterone conducting to primary hiperaldosteronism.Clinical case: a 52-year-old female with a 4 year history of hypertension with poor control despite medication during the last 2 months. Secondary HTA was suspected son the patient was investiga-ted: High levels of aldosterone were found on blood analisis. The CT scan showed a right adrenal mass. Given this suspicion, a right laparoscopic adrenalectomy was performed. The patient was discharged at 24h after intervention without any complications.Conclusion: in the case of primary hyperaldosteronism, surgery implies a possibility near 100% of controlling hypertension with medication and a possibility of cure of between 30-60%. Laparosco-pic acces is nowadays the gold standard.