Definition:
Cushing syndrome is a disorder that occurs when your body is exposed to high levels of the hormone cortisol. It may also occur if you take too much cortisol or other steroid hormones. See also: Cushing's disease (pituitary Cushing's)
Alternative Names:
Hypercortisolism
Causes, incidence, and risk factors:
Cushing syndrome may be caused by taking too much corticosteroid medications, such as prednisone and prednisolone. These drugs are used to treat conditions such as asthma and rheumatoid arthritis. Other people develop Cushing syndrome because their bodies produce too much cortisol, a hormone normally made in the adrenal gland. Causes of too much cortisol are: - Cushing's disease, when the pituitary gland makes too much of the hormone ACTH. ACTH then signals the adrenal glands to produce cortisol. Tumor of the pituitary gland may cause this condition.
- Tumor of the adrenal gland
- Tumor elsewhere in the body that produces cortisol
- Tumors elsewhere in the body that produce ACTH (such as the pancreas, lung, and thyroid)
Cushing's disease affects women more often than men.
References:
Stewart PM. The adrenal cortex. In: Kronenberg HM, Shlomo M, Polonsky KS, Larsen PR, eds. Williams Textbook of Endocrinology. 11th ed. Philadelphia, Pa: Saunders Elsevier;2008:chap 14. Carroll T, Raff H, Findling JW. Late-night salivary control measurement in the diagnosis of Cushing's syndrome. Nat Clin Pract Endocrinol Metab. 2008;4:344-350.
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