The most important part of your mri is the "Impressions" or "Conclusions" section. What does it say specifically, and why were you sent for the mri in the first place?
There are many reasons for scattered small foci of white matter. I would find it unusual also that a radiologist would specify that one of the lesions was definitely ms plaque after a first mri.
HI and welcome
Scattered small foci in the white matter is the most common findings on a brain MRI; location(s), size, shape, if any enhance with contrast etc etc as well as your abnormal neurological clinical signs, medical history, age, symptom type etc are all important details on whether or not the foci is diagnostically significant or not...
MRI reports don't typically use the term 'MS lesion' and i'd only be speculating on why one of the brain lesions could be suggestive or consistent with demyelination.....You will probably need to expand your information and question for us to be of any practical help and support, as it is what you've provided is more of a guessing game of what you need us to help you with sorry.
Unsure how to help you.......JJ