Abstract
A 41-yr-old female with presumed Cushing's syndrome was found to have a diurnal cortisol rhythm characterized by low values at 8:00 a.m. and consistently high values at 4:00 p.m. and midnight. Hourly sampling of plasma cortisol over 24 hr confirmed this rhythm, as did measurement of urinary free cortisols in samples collected every 6 hr over 24 hr. Hypercortisolemia was not suppressed by 2 mg of dexamethasone given every 6 hr for 24 hr. the adrenal tissue was responsive to ACTH. lodocholesterol scanning revealed unilateral activity, and the patient's syndrome was cured by resection of an adrenal adenoma. In this patient a diurnal cortisol secretory pattern was present due to the secretory activity of the adenoma. The cause of the abnormal but persistent diurnal pattern is unknown.
Original language | English (US) |
---|---|
Pages (from-to) | 695-700 |
Number of pages | 6 |
Journal | Metabolism |
Volume | 27 |
Issue number | 6 |
DOIs | |
State | Published - Jun 1978 |
All Science Journal Classification (ASJC) codes
- Endocrinology, Diabetes and Metabolism
- Endocrinology