You are forgiven for knowing even less than the surgeons, radiologists and GPs about meningioma. They are fairly rare. Nor have I cut and pasted anything relating to meningioma.
The point is, all the surgeons and radiologists, the so-called professionals, were as clueless as yourself because they weren't interested in the research. Neither are you. All I was doing was answering your question, and all the grace you have is to attack me.