Hereditary motor-sensory neuropathy type III (HMSN III) (Dejerine-Sott
as disease) is a severe demyelinating neuropathy that is traditionally
considered autosomal recessive. We report a father and daughter diagn
osed with HMSN III by clinical, electrophysiologic, and pathologic cri
teria, thus showing that it may be transmitted in an autosomal dominan
t fashion in selected families.