I finally got a call from the Physician's Assistant about Holland's MRI. It is not AVM, but has to do with enlarged blood vessels. To be 100% sure that it is benign, they have to do another MRI-type imaging test. Which means we get to go back to Emanuel and have more anesthesia. It's kind of weird because I'm glad it's not something that has to be surgically corrected. But many problems related to this condition are issues Holland is dealing with. This would have been a tidy way to label everything that was wrong.
So for now we just wait to schedule an MRI and see a specialist about his headaches.