Multiple CMT types in one family

[Guest guest]

It is possible for family members to have different types of CMT, but

it's extremely rare.

 

For example, a family (on another support site) recently reported one sibling

with CMT4F and another sibling with CMT4J.  Both genetic defects are recessive,

meaning both parents needed to carry the defective genes in order for them to be

inherited by the children (unless there is something not yet understood about

genetic defects).  Or, one or both of the children may have had a 'de novo'

mutation.

 

This type of situation is incredibly rare.  The study of genetics has come a

long way in the last decade, but there is still so much more to learn.

 

in So Calif

(40's, CMT1a)