Aldosterone-producing adenoma

An aldosterone-producing adenoma  (APA) is a noncancerous (benign) tumor that develops in an adrenal gland, which is a small hormone-producing gland located on top of each kidney. Excess aldosterone causes the kidneys to retain more salt than normal and excrete potassium, which increases the body’s fluid levels and blood pressure, and may also lead to hypokalemia (insufficient potassium).


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