@gretchenb, I love your phrase "I never have a dumb question anymore, not when it is about my husband's health and healing." You're so right. There really are no dumb questions. Welcome.

There are several discussions about Y90. Here are a few links that you might find helpful:
- Radioembolization for pancreatic cancer metastasis to liver?
https://connect.mayoclinic.org/discussion/radioembolization/
- Y-90 liver cancer treatment
https://connect.mayoclinic.org/discussion/y-90-liver-cancer-treatment/
See all https://connect.mayoclinic.org/search/discussions/?search=Y90

How did the consultation for Y90 go?