Well, the call upon Dr. Rocks is over.
I am not pleased.
As anticipated by nearly everyone but me, his suggestion was that we simply remove my grape instead of doing a biopsy and then removing it. Sensible. I approve.
In about a month!
Oh well. The revelation is that my grape is shaped about like a fried egg (a little one) and is some sort of soft tissue oozing between plates of the skull. Nothing appears to be inside. The doctor tells me he may have to replace some of the skull (spackle?) with some substance that had a metallic-sounding name. I've always wanted a metal plate in my head to attract signals from benevolent aliens and keep the government from beaming thoughts into my brain.
Maybe next time.