Help with Brain MRI report please!

I had a 2nd brain mri and just got the results. I don't go back to neurologist until Feb 27th

The first MRI was done May 08......The results as follows
The ventricles are normal in size and configuration. perventricular white matter changes in the centrum semiovale suggestive of microvascular infarcts and/or demyelatinating disease.
I was told wait 6 months and than have another MRI because of possible MS.


Second MRI was done 12/08.....The results as follows
There is prominence of the ventricles and sulci for age...Possible volume loss.
There is abnormal configuration of the ventricles with probable exvacuo dilation of the occipital horns.
There is a paucity of parieto-occipital white matter.
There is diffuse hypointensity of the calvarium.

Anyone have any feedback? I don't even know what some of the words mean.
Thank you so much!!