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Medical Definition of Idiopathic aldosteronism
1. An adrenocortical disorder caused by excessive secretion of aldosterone and characterised by headaches, nocturia, polyuria, fatigue, hypertension, potassium depletion, hypokalaemic alkalosis, hypervolaemia, and decreased plasma renin activity; may be associated with small benign adrenocortical adenomas. Synonym: Conn's syndrome, idiopathic aldosteronism. (05 Mar 2000)