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Classification & external resources
ICD-10 E26.
ICD-9 255.1
DiseasesDB 6187
MedlinePlus 000330
eMedicine radio/354 
MeSH D006929

Hyperaldosteronism, also aldosteronism, is a medical condition where too much aldosterone is produced by the adrenal glands, which can lead to lowered levels of potassium in the blood.


  • E26.0: Primary hyperaldosteronism, often caused by an adrenal cortical adenoma (a tumor), is also known as Conn's syndrome.

In endocrinology, the terms primary and secondary are used to describe the abnormality (e.g. elevated aldosterone) in relation to the defect, i.e. the tumor's location. The adjective primary refers to an abnormality that directly leads to pathology, i.e. aldosteronism is caused by the apparatus that generates aldosterone. Secondary refers to an abnormality that indirectly results in pathology through a predictable physiologic pathway, i.e. a renin producing tumour leads to increased aldosterone, as the body's aldosterone production is normally regulated by renin levels.


It can be asymptomatic, but the following symptoms can be present

See also

  • Hypoaldosteronism
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Hyperaldosteronism". A list of authors is available in Wikipedia.
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