title: [Diagnosis of peripheral neuropathies: profile of patients without established etiological diagnosis].
abstract: No etiological diagnosis was obtained for 35 of 209 patients studied. Mean patient age was 37.7 years and the preferentially affected age range was 20 to 50 years. Laboratory investigation was more extensive among these patients than among patients with a defined diagnosis. An 11:1 ratio was obtained between normal and abnormal laboratory tests. The major topographic diagnoses were: axonal polyneuropathies, 5 cases; multineuropathies and radiculopathies, 3 cases each. The present findings are discussed and compared with the literature concerning neuropathies of undefined diagnosis.
authors.affiliation: Departamento de Neuropsiquiatria e Psicolopia Médica, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Brasil.
authors.forename: W
authors.initials: W
authors.lastname: Marques Júnior
authors.forename: R F
authors.initials: RF
authors.lastname: Herrera
authors.forename: A A
authors.initials: AA
authors.lastname: Barreira
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010523:Peripheral Nervous System Diseases / Q000175:diagnosis* / Q000209:etiology; D012737:Sex Factors
vernacular_title: Diagnóstico das neuropatias periféricas. Perfil dos pacientes sem diagnóstico etiológico estabelecido.