MPZ (myelin) CMT 1A or B ?

[Guest guest]

Hi,

I have a question regarding classification of 1A or B. Keep in mind

we found out a year ago that my son has CMT and I'm still learning.

When my son was diagnosed, Athena said he had a new, never seen

before, mutation on the MPZ gene and because of that he was classified

as 1B as that was the " closest' classification to the mutation. I

noticed in a recent post from Donna that she mentioned that she has

CMT 1A and that it relates to myelin.

Can someone explain to me in more " layman's " details the difference

between 1A and 1B since they both deal with the myelin.

Thanks!

Carmella