They are the same. They are all called UBO's or unidentified bright objects. You can have an area of hyper intensity without physical symptoms, as some are in an area that doesn't really affect you physically. Usually in the gray matter if the brain.

Thank you for the explanation. I'm kind of new to this so appreciate the info. :)

this is an ollllld post but SO useful. Thank you!

I agree I had same questions! Oh and had recent MRI and EEG since had a seizure just wanting now for MS Dr to review them and discuss with us IN march