X-linked motor and sensory neuropathy with pyramidal signs and cerebral white matter lesions.
We report two brothers with hereditary motor and sensory neuropathies and pyramidal signs. Electrophysiological evaluation revealed polyneuropathy and involvement of the central motor, somatosensory, and auditory pathways. Brain magnetic resonance imaging studies showed diffuse white matter lesions, and sural nerve biopsy identified a reduction in the large myelinated nerve fibers. The patients' mother and sister exhibited similar, but milder neurologic findings suggesting that the genetic defect may be X-linked; however, a point mutation in the connexin 32 gene was negative.
Department of Neurology, Kawatana National Hospital, Shimogumi-gou 2005-1, Kawatana, Higashisonogi-gun, Nagasaki, 859-3615, Japan. goto@kawatana.hosp.go.jp
Hirofumi
H
Goto
Hidenori
H
Matsuo
Akio
A
Ohnishi
Takayasu
T
Fukudome
Noritoshi
N
Shibuya
D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D040181:Genetic Diseases, X-Linked / Q000235:genetics / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009413:Nerve Fibers, Myelinated / Q000473:pathology; D010375:Pedigree; D011712:Pyramidal Tracts / Q000473:pathology; D015419:Spastic Paraplegia, Hereditary / Q000235:genetics / Q000473:pathology*; D013687:Telencephalon / Q000473:pathology*