Limits of variation of fiber distribution in the sural nerve of man
Arch. med. res
;
28(2): 183-7, jul. 1997. ilus
Artigo
em Espanhol
| LILACS
| ID: lil-225212
RESUMO
Although the sural nerve is the most extensively studied nerve in man, there is a dearth of data regarding the normal variations in the size-frequency distribution of axons in normal subjects; criteria for assessing the normality of a given individual are not available. Therefore, in everyday practice, the surgical pathologist may meet with difficulty in interpretit the biopsy of one particular individual, in whom the distribution is slightly different from the curves published. The object of this work is to detect the normal limits of variation in the distribution of diameters of muelinated and unmyelinated fibers in normal subjects and to establish the criteria that permit the calculated curves to be used in veryday clinical practice. Normal sural nerves of 19 patients were analyzed. Ages ranged between 18 months and 55 years. Morphometric analysis was performed with the Histoscan X automatic image processing analyzer, and , for statistical analysis, mixtures of lognormal distributions were fitted and tested with Pearson's statistics. Nerves of three diabetic patients were used for testing the method. They were clearly classified as abnormal. The curves, therefore, have been proven useful for everyday surgical pathology practice
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Índice:
LILACS (Américas)
Assunto principal:
Axônios
/
Nervo Sural
/
Variação Genética
/
Processamento de Imagem Assistida por Computador
/
Tamanho Celular
/
Neuropatias Diabéticas
/
Fibras Nervosas
Limite:
Adolescente
/
Adulto
/
Criança, pré-escolar
/
Feminino
/
Humanos
/
Masculino
Idioma:
Espanhol
Revista:
Arch. med. res
Assunto da revista:
Medicina
Ano de publicação:
1997
Tipo de documento:
Artigo
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