title: Manifesting carrier of x-linked Duchenne muscular dystrophy.
abstract: The authors have investigated the uncommon occurrence of a boy affected with Duchenne muscular dystrophy (DMD) whose mother showed myopathic features in the clinical history, EMG, biochemical tests and muscle biopsy. This study suggests that the patient's mother is a manifesting carrier of X-linked DMD with clinical, neurophysiological, biochemical and histological findings of X-linked DMD with an almost complete inactivation of the paternal X-chromosome (lyonization).
mesh_terms: D000293:Adolescent; D000328:Adult; D001706:Biopsy; D005260:Female; D006580:Genetic Carrier Screening; D008040:Genetic Linkage; D006801:Humans; D008297:Male; D009132:Muscles / Q000473:pathology; D009136:Muscular Dystrophies / Q000235:genetics* / Q000473:pathology; D010375:Pedigree; D012729:Sex Chromosome Aberrations; D014960:X Chromosome