MSFinals-6395
A 50-year-old woman comes to the clinic with creamy nipple discharge. She had a mammogram screening a year ago which was normal. She smokes 10 cigarettes per day. Upon examination, there were no alarming findings. A repeat mammogram was conducted and no abnormalities were detected. Although she is concerned about the possibility of a tumor, she is not bothered by the discharge itself. Her serum prolactin level is provided below.
Prolactin 200 mIU/L (<600)
What is the most probable diagnosis and what would be the best initial treatment?