Thanks for the query,
First of all i would like to tell you that the interpretation of MRI should be done only in a given clinical context., has to be correlated with the clinical data. In the absence of clinical problem of a patient it is difficult to say if you need CSF or not.
I am sorry that i don't know your age and if you have high BP
You need not see a consultant who specializes MS but you need c,clinical evaluation by a neurologist
. If you are not happy, better go for a second opinion
. The clinical interview will clarify so many things and we will be able to guide you better.