Hello @robert25. Welcome to Mayo Clinic Connect. I'm sorry to hear you have had a long struggle with pituitary tumors. I bet that's been really tough.

Here is some helpful information that Mayo Clinic has out on the Mayo Clinic.org site- https://www.mayoclinic.org/diseases-conditions/pituitary-tumors/diagnosis-treatment/drc-20350553
You may also find this discussion thread helpful to read- https://connect.mayoclinic.org/discussion/pituitary-cancer/?pg=1#comment-100751

What type of radiation therapy have you and your care team decided on?