I have a meningioma since 2002 it's in a nasty place on the cranial nerves would you say that the radiotherapy would be the best treatment ?

Unlikely to help: Radiation and chemotherapies may have little value to control problems from a benign garden variety meningioma, and far better to seek out a neurosurgeon who has experience in microsurgical techniques. If there is distinct clinical nerve symptomatology, a temporary benefit may be achieved by use of steroids, but not really a permanent solution.

Depends: Based on size & location, radiotherapy (4-5.5 wks) or radiosurgery (1-5 treatments) may be appropriate especially in the absence of surgical options. Rate of change and symptoms also play role in decision-making of if & when to treat.