MY Husband Has Had An MRI Of The Brain For

MY husband has had an MRI of the brain for Post Concussive syndrome/headache/ mild cognitive impairment. most of the MRI was grossly normal and unremarkable. There was however, minimal thickening of the mucosa within the paranasal sinuses. The other finding was " There are a few (less than five), tiny foci of elevated T2/FLAIR signal within the white matter, which is a nonspecific finding" Can you give any insight?