To better understand aldosteronism, it helps to understand the anatomy of the kidneys and adrenal glands.
The adrenal glands are paired, triangular shaped endocrine glands that are located at the upper portion of each kidney. The adrenal gland is composed of adrenal cortex and the adrenal medulla.
The kidneys are located in the back of the abdomen, below the ribcage and on either side of the spine. Each kidney weighs about 1/4 pound (0.6 kg) and is about the size of a fist. The kidneys filter waste from the bloodstream and produce urine. The kidneys also regulate the salt and water balance for the body.
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- Capricchione A, Winer N, Sowers JR. Adrenocortical hypertension. Curr Hypertens Rep. 2004 Jun;6(3):224-9. 
- Kaplan NM. The current epidemic of primary aldosteronism: causes and consequences. J Hypertens. 2004 May;22(5):863-9. 
- Mulatero P, Dluhy RG, Giacchetti G, Boscaro M, Veglio F, Stewart PM. Diagnosis of primary aldosteronism: from screening to subtype differentiation. Trends Endocrinol Metab. 2005 Apr;16(3):114-9. 
- Vaughan ED Jr. Diseases of the adrenal gland. Med Clin North Am. 2004 Mar;88(2):443-66.