Is demyelination always related to ms?

[Ifianassa]

Ηello.I would like to ask if demyelination of a nerve is always associated with ms. I experienced lermitte sign on August 2012 (now this symptom has gone) and the mri showed one spinal lesion (less than 1cm)(mri of the brain was clear). Demyelination can be caused by other reasons, or it's always the result of ms (or other demyelinating disease)?

[Ifianassa]

Thank you all for your answers.Thank God, one year and a half after and nothing worse happened. Only L'hermitte...I didn't have an Mri though, I don't know if there is any change...I am afraid of doing, my doctor knowing my fear and stress doesn't pressure me.
kwarendorf  what is the PS lesions?
twopack  this abnormal issue on mri is not distinguished in demyelination? my mri says one lesion suspected of demyelination.how do they know that it is demyelination and not something else? lesion due to demyelination has a specific shape etc?
Thank you all and have strength and good people around us to share, love.Only that can be the cure for everything.

[twopack]

Lesions 'seen' on MRI indicate there are abnormal areas of tissue but don't necessarily indicate the damage is demyelination.

MS always involves demyelination in the CNS.

Demyelination CAN be caused by things other than MS but MS is (by far) the most likely cause of demyelination that appears in the spinal cord.

[kwarendorf]

PS Lesions = Demyelination

[kwarendorf]

As Ess said, L'Hermitte's Sign is a symptom caused by a lesion(s) usually locates in the c-spine, rather than the brain.

Not all lesions are caused by MS, but all MS involves lesions. It's kinda like squares and rectangles. All squares are rectangles but not all rectangles are squares :-)

Lesions are scars. Multiple sclerosis translates to many scars.

Kyle

[essdipity]

L'hermittes does not cause lesions, but lesions (or a lesion) cause L'hermittes. Wikipedia has a pretty good explanation of this:

http://en.wikipedia.org/wiki/Demyelinating_disease

There are other diseases besides MS that include demyelination, but MS is the most common.

ess

[SarahL2491]

L'hermittes does not cause lesions as far as I know.  I think if you went to our health pages and did  some  reading, some  of your questions would be answered.  Lesions are scars.  Sometimes they indicate attempts at repair, and thus can cause them to disappear.

Your l'hermittes may or may not return later.  It varies for each of us and some do not have it at all.  

Are you still awaiting dx since you only have one lesion?

I've tried to simplify some of this and not bury you in deep explanations