23rd May 2025

A 36-year-old female presents to an endocrinology clinic as her GP suspected Cushing’s syndrome.

A 36-year-old female presents to an endocrinology clinic as her GP suspected Cushing’s syndrome. The patient has a history of obesity and PCOS. Dexamethasone suppression test was positive for hypercortisolism. Midnight salivary cortisol levels were 4 µg/dL.   

What is the most likely diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.