Endocrine Abstracts

Objective: Most patients with ACTH-dependent Cushing’s syndrome have Cushing’s disease, i.e. a pituitary corticotroph adenoma, but the presence of another tumor secreting ACTH (although the prevalence of ectopic ACTH syndrome is lower) needs to be considered in the differential diagnosis. Distinguishing between these two etiologies can be difficult despite biochemical and radiological examinations. Previous research showed that inferior petrosal/cavernous sinus sampl...