I find it intriguing that they emphasized a significant abnormality, while also calling the lesions non-specific? Very unusual wording for a radiologist to use -- generally they say something along the lines of "suggest further imaging`` if there is an area in question. I'm sorry, only your neurologist will be able to unravel the meaning of the white matter lesions found.
Usually the differential for non-specific lesions also includes ischaemic changes and migraine, as well as demyelination. I`ve never had gliosis mentioned as a possible cause on mine. The radiologist, in this report, has not mentioned any typical areas of concern for multiple sclerosis (periventricular, brainstem, juxtacortical lesions) -- sounds lilke subcortical lesions only.
I've had neurologists frustrated by a radiologist "over reading" the mr imaging and I wonder if this is the case here? Honestly, in the age of patients receiving imaging results online prior to seeing a neurologist, your radiologist needs some patient sensitivity training!
Some of the symptoms your husband is experiencing could be because of a neurological issue, however with elevated blood pressure and heart rate issues it is more likely to be related to ischaemic change .. in my completely non-doctor opinion, so please take with a large grain of salt.
Hoping you can see the doctor shortly to get a full explanation for this mri! What a disconcerting warning :(.