[Morton's disease: optic and electron microscopy observations]. / La maladie de Morton: observations en microscopie optique et électronique.
Acta Orthop Belg
; 57(3): 285-95, 1991.
Article
em Fr
| MEDLINE
| ID: mdl-1950513
ABSTRACT
The authors performed an optic and electron-microscope investigation above the common digital nerve of the foot, whose fragments had been surgically removed from patients suffering from "Morton metatarsalgia" (neuroma). Histological sections were taken from pre-stenotic swelling in patients with clinical symptoms persisting for one year; perineural thickening without evidence of fibroblastic proliferation could be demonstrated, together with an intraneural deposition of an amorphous substance. In other patients suffering from Morton's disease for a longer time, a more pronounced epineural thickening in the pre-stenotic zone could be shown, with partial replacement of nerve fibers by amorphous substance. In the same patients endoneural fibrositis was seen at the level of the stenosis. Electron-microscopy in patients after one year showed an increase in collagenous endoneural fibers and microfibrils. These histopathological findings suggest a compressive mechanism in the pathogenesis of the damage to the common interdigital nerve in Morton's disease, caused by the extrinsic anatomical structures surrounding the nerve. The so-called "neuroma" can be identified with the pre-stenotic swelling.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Nervos Periféricos
/
Pé
/
Síndromes de Compressão Nervosa
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Humans
/
Male
/
Middle aged
Idioma:
Fr
Ano de publicação:
1991
Tipo de documento:
Article