A 45-year-old white woman with clinical findings suggestive of Cushing syndrome
A 45-year-old white woman with clinical findings suggestive of Cushing syndrome has 2 elevated late night salivary cortisol levels and 2 elevated urinary free-cortisol tests of 220 and 300 (normal 2-50mg/24 hour); her ACTH level is 55 (normal 5-50pg/mL), and her pituitary MRI shows a 3mm adenoma. Which of the followings is the best next […]