Addison's Disease

Addison's Disease

Addison’s disease (also chronic adrenal insufficiency, hypocortisolism, and hypoadrenalism) is a rare, chronic endocrine disorder in which the adrenal glands do not produce sufficient steroid hormones (glucocorticoids and often mineralocorticoids). It is characterised by a number of relatively nonspecific symptoms, such as abdominal pain and weakness, but under certain circumstances, these may progress to Addisonian crisis, a severe illness which may include very low blood pressure and coma.

The condition arises from problems with the adrenal gland, "primary adrenal insufficiency", and can be caused by damage by the body's own immune system, certain infections, or various rarer causes. Addison's disease is also known as chronic primary adrenocortical insufficiency, to distinguish it from acute primary adrenocortical insufficiency, most often caused by Waterhouse-Friderichsen syndrome. Addison's disease should also be distinguished from secondary and tertiary adrenal insufficiency, which are caused by deficiency of ACTH (produced by the pituitary gland) and CRH (produced by the hypothalamus), respectively. Despite this distinction, Addisonian crises can happen in all forms of adrenal insufficiency.

Addison's disease and other form of hypoadrenalism are generally diagnosed via blood tests and medical imaging. Treatment involves replacing the absent hormones (oral hydrocortisone and fludrocortisone). Lifelong, continuous steroid replacement therapy is required, with regular follow-up treatment and monitoring for other health problems.

Addison’s disease is named after Dr. Thomas Addison, the British physician who first described the condition in 1849. The adjective "Addisonian" is used to describe features of the condition, as well as patients suffering from Addison’s disease.

Read more about Addison's Disease:  Causes, Epidemiology, Prognosis, In Other Animals

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