Neurosurgeon: It's not that it's "inoperable", exactly. Just that the cavernous sinus cavity (located in the skull, behind and slightly below the eye, but not technically in the brain, just like everyone said) has lots going on with it. The internal carotid artery runs through it, cranial nerves, and the opthalmic vein. So unless its life or death, or the patient is already blind ..... neither of which describe your situation .... I prefer not to operate. I am going to recommend more radiation.
Blaine: No surgery??
Kristie: *Only* radiation??
Blaine: No surgery, hurrah!!!!!!!
Sometimes, when you're between a rock and a hard place, the rock doesn't look so unappealing.