It is not at all sure that decreasing prolactin will decrease the size
of the tumour. I realize that some endocrinologists believe that
prolactin stimulates the size of the tumour, but this is opinion.
The mother can wait and see. That's a possible alternative. The size
of the tumour can be followed by CT or MRI scan (no need to suspend
breastfeeding because of the dyes, no matter what the radiologists
say).
Jack Newman, MD, FRCPC