Prolactinoma

Your healthcare provider will ask about your symptoms and medical history and do a physical exam. If you have milky nipple discharge, they may do a breast exam. They’ll likely recommend one or more of the following tests to diagnose prolactinoma:

• Prolactin blood test: If your blood test result reveals that you have higher-than-normal prolactin levels, your provider will likely recommend image testing to confirm or rule out a prolactinoma diagnosis.
• MRI scan or CT scan: These imaging tests can help your provider locate the tumor and determine its size. Providers prefer using MRI scans to diagnose prolactinomas, but a CT scan is the next option if an MRI scan isn’t safe for you.
• Testosterone level blood test: If you’re a person AMAB, your provider will likely want to test your testosterone levels.

If you receive a prolactinoma diagnosis, your provider may recommend additional blood tests to check the levels of other pituitary hormones. If you have a large prolactinoma, your provider may recommend an eye exam to see if it’s affecting your vision.