Re: do old lesions become active? Or is an active lesion a new lesion?
The MRI is a great diagnostic tool, however, the MRI does not tell the whole story of your MS and how you are doing.
You can have an exacerbation without new lesions. You can also be feeling fine and have new lesions.
An exacerbation can mean old damage or new in the Central Nervous System (CNS). Simply put: your CNS is mis-communicating/mis-firing which in turn causes symptoms, either those symptoms that come and go, permanent symptoms and exacerbations.
Lesions, symptoms and exacerbations are all a common part of this disease.
Dx RRMS 1985
5/9/13/ Secondary Progressive without Progression
Last edited by Snoopy61; 02-14-2009 at 10:36 AM.