My Mom Recently Found Out That She Has Calcified Cerebral

My mom recently found out that she has calcified cerebral meningioma. She has had an itchy scalp for over 20 years. It has gotten worse as she has gotten older. She has been to numerous dermatologists through the years and has tried all kinds of topical treatments. There is no sign on her scalp and when a biopsy was done, it showed nothing. Is it possible that the meningioma could have been causing this itching all these years. The doctor said that the tumor could have been there since birth. We are going to a neurologist in the near future, but are just curious in the meantime. What do you think?