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Abstract

Primary Aldosteronism is a clinical condition characterized by an excessive autonomic production of aldosterone, independently from the rennin-angiotensin-aldosterone system, it´s physiological regulator. The commonly clinical presentation of Primary Aldosteronism is resistant hypertension, and can be associated in some cases to hypokalemia and metabolic alcalosis. In the 10% of secondary hypertension cases it is associated to Primary Aldosteronism, in which 50% of the times it is due to an Aldosterone-Producing Adenoma, a benign tumor of the suprarenal glands that is typically unilateral and is one of the exceptional causes of curable hypertension. Jerome Conn described this entity, it´s diagnostic and treatment for the first time in 1955. This case is about a 53 years old men with 11 years data of arterial hypertension difficult to control that is now studied for presenting muscle cramps, fatigue and hypokalemia. On clinical suspicion of Primary Aldosteronism, Aldosterone-to-Renin Ratio test is done, in where an elevated result is found. A laparoscopic adrenalectomy is done after the discovering of a 1cm nodular lesion with an hypodense center in the right suprarenal gland by contrasted computed tomography. The histopathological study confirms the diagnosis. The patient has not presented hypertension values after the surgery reason why it´s hypertension medication is suspended.