1.When we evaluate patients with meningiomas, size is not the biggest issue. Rather, it's location of the tumor, the clinical exam (whether it's causing neurological problems like
weaknessWeakness,
speechHearing or speech impairment - resources
Speech disorders changes, etc...), and whether or not it's actually invading the brain. As I have not personally seen your mother's imaging studies, it's difficult to give an accurate opinion as to whether or not this is considered "quite large," but I would say that it is a significant size. Again, it's all relative. If this were in the
brainstemBrainstem function
Posterior fossa tumor, it would be considered huge by all means.
2.Unless your mother has neurological deficits such as right sided
weaknessWeakness and
speechHearing or speech impairment - resources
Speech disorders changes (which could accompany a left frontal tumor depending on where it is)or has signs/symptoms of increased cranial pressure, there is no emergent need for surgery.
3.Can't say who's right/wrong. But as you're getting conflicting information, I would recommend a second opinion. Drs. Gene Barnett and Michael Vogelbaum are excellent neurosurgeons here at the clinic who specialize in brain tumor surgery.
Good luck.