Abnormal CNS myelination

What it means

An abnormality of myelination of nerves in the central nervous system.

In the CNS, myelin is the product of oligodendrocytes (and not of Schwann cells, as in the PNS). This term refers to an abnormality of the process in which myelin sheaths are formed and maintained around neurons or the result of such an abnormality.

Rare diseases that can present with this6

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Abnormal formation of myelin sheaths