Ectopic Cushing syndrome
Alternate Names : Cushing syndrome - ectopic
Definition
Ectopic Cushing syndrome is a condition in which a tumor outside the pituitary or adrenal glands produces a hormone called adrenocorticotropic hormone (ACTH).
Overview, Causes, & Risk Factors
Cushing syndrome is the result of too much glucocorticoid hormones being released over a long period of time. About 15% of Cushing syndrome cases are due to ectopic Cushing syndrome. Ectopic Cushing syndrome is caused by tumors that release adrenocorticotropic hormone (ACTH). Other causes of Cushing syndrome are:
- Excess release of ACTH by the pituitary gland
- Long-term use of corticosteroid drugs (commonly used to treat conditions such as rheumatoid arthritis and asthma)
- Tumor of the adrenal gland
Tumors that can, in rare cases, release ACTH include:
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