open access
The role of combined low-dose dexamethasone suppression test and desmopressin stimulation test in the diagnosis of persistent Cushing’s disease. Case report
open access
Abstract
The authors discuss the case of a patient, currently aged 60, after repeat pituitary surgery, with progressive cardiovascular complications, in whom persistent Cushing’s disease was diagnosed. The diagnosis was determined despite normal plasma ACTH, serum cortisol levels, and 17-OHCS concentrations in daily urine. There was also a lack of obvious pituitary adenoma features in the magnetic resonance imaging (MRI). Persistent Cushing’s disease was diagnosed based on the combined dexamethasone desmopressin test.
The presented case points to the role of provocative testing, including the desmopressin test following 1 mg of dexamethasone, for diagnostically difficult cases of Cushing’s disease.
(Pol J Endocrinol 2010; 61 (3): 312-317)
Abstract
The authors discuss the case of a patient, currently aged 60, after repeat pituitary surgery, with progressive cardiovascular complications, in whom persistent Cushing’s disease was diagnosed. The diagnosis was determined despite normal plasma ACTH, serum cortisol levels, and 17-OHCS concentrations in daily urine. There was also a lack of obvious pituitary adenoma features in the magnetic resonance imaging (MRI). Persistent Cushing’s disease was diagnosed based on the combined dexamethasone desmopressin test.
The presented case points to the role of provocative testing, including the desmopressin test following 1 mg of dexamethasone, for diagnostically difficult cases of Cushing’s disease.
(Pol J Endocrinol 2010; 61 (3): 312-317)
Keywords
Cushing’s disease; desmopressin test; hypercortisolaemia


Title
The role of combined low-dose dexamethasone suppression test and desmopressin stimulation test in the diagnosis of persistent Cushing’s disease. Case report
Journal
Issue
Article type
Case report
Pages
312-317
Published online
2010-07-02
Page views
548
Article views/downloads
1965
Bibliographic record
Endokrynol Pol 2010;61(3):312-317.
Keywords
Cushing’s disease
desmopressin test
hypercortisolaemia
Authors
Przemysław Witek
Wojciech Zgliczyński
Grzegorz Zieliński
Wojciech Jeske