[Two cases with quadriceps myopathy of juvenile onset (author's transl)].
D000328:Adult; D003937:Diagnosis, Differential; D004576:Electromyography; D006801:Humans; D008297:Male; D009133:Muscular Atrophy / Q000473:pathology; D009135:Muscular Diseases / Q000175:diagnosis* / Q000473:pathology / Q000503:physiopathology; D009136:Muscular Dystrophies / Q000175:diagnosis; D013848:Thigh