Addison's disease, also called adrenocortical deficiency or primary adrenal hypofunction, is a rare condition caused by destruction of the cortex of the adrenal gland, one of several glands the endocrine system. Because Addison's disease is treatable, those who develop the illness can expect to have a normal life span.
The adrenal glands, also called suprarenal glands, sit like flat, triangular caps atop each kidney. They are divided into two distinct areas-the medulla at the center and cortex surrounding the outside. The cortex, which makes up about 80% of the adrenal gland, secretes three types of hormones—sex hormones, mineralocorticoids (principally aldosterone), and glucocorticoids (primarily cortiso…
The disease is named for its discoverer, Dr. Thomas Addison, a British surgeon who described adrenal insufficiency in 1849, though endocrine functions had yet to be explained. Addison described the condition from autopsies he performed. At the time, there was no cure for adrenal insufficiency, so victims died after contracting it. Addison also noted that 70-90% of patients with adrenal insufficien…
The effects of adrenal insufficiency do not manifest themselves until more than 90% of the adrenal cortex has been lost. Then weakness and dizziness occur, and the skin darkens, especially on or near the elbows, knees, knuckles, lips, scars, and skin folds. These symptoms begin gradually and worsen over time. The patient becomes irritable and depressed and often craves salty foods. Some people do …
Once diagnosed, Addison's disease is treated by replacing the natural cortisol with an oral medication. The medicine is adjusted by a doctor to bring cortisol levels in the blood up to normal and maintain them. A patient also is advised to eat salty foods, not skip any meals, and carry a packet containing a syringe with cortisone to be injected in case of an emergency. With the loss of the …
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