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Home > Patient & Family Resources > Health Library > Secondary Adrenocortical Insufficiency
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Secondary adrenocortical insufficiency is a condition in which a lack of adrenocorticotropic hormone (ACTH) prevents the body from producing enough cortisol.
Production of cortisol is controlled by the action of ACTH. ACTH is produced by the pituitary gland. This gland is controlled by the hypothalamus in the brain. If either the hypothalamus or pituitary gland is damaged, less ACTH is produced. This can lead to problems with the adrenal glands and reduced cortisol production.
Secondary adrenocortical insufficiency may be caused by:
With secondary adrenocortical insufficiency, only cortisol is low. The adrenal glands can still make normal amounts of the hormone aldosterone. Symptoms include:
Diagnosis starts with a medical history and physical exam. If your doctor suspects adrenal insufficiency, he or she will check your blood cortisol and ACTH levels. You may have imaging tests of the adrenal glands, the pituitary gland, or the hypothalamus.
CT scan or MRI can be used to see if there are signs of damage to the brain or pituitary gland (such as a tumor) that is causing adrenal failure.
If your doctor suspects secondary adrenocortical insufficiency, you may get infusions of ACTH 2 days in a row. In most cases, your adrenal glands will make cortisol by the end of the second treatment. This is true even if you have problems with the pituitary gland or hypothalamus. If possible, your doctor will treat the condition that is causing secondary adrenocortical insufficiency. Your doctor may start treatment during the testing if he or she thinks adrenal insufficiency is likely. If it turns out that you don't need treatment, you can stop treatment after testing is complete.
Current as of:
December 2, 2020
Author: Healthwise StaffMedical Review: E. Gregory Thompson MD - Internal MedicineKathleen Romito MD - Family MedicineDavid C.W. Lau MD, PhD, FRCPC - Endocrinology
Current as of: December 2, 2020
Author: Healthwise Staff
Medical Review:E. Gregory Thompson MD - Internal Medicine & Kathleen Romito MD - Family Medicine & David C.W. Lau MD, PhD, FRCPC - Endocrinology
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