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Vol. 24. Issue 6.
Pages 236-238 (November - December 1988)
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Vol. 24. Issue 6.
Pages 236-238 (November - December 1988)
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Aportacion de la microscopia electronica de superficie y del analisis dispersivo de energia al estudio de las asbestosis
Contribution of surface electron microscope study and energy dispersion analysis to assessment of asbestosis
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E. Monsó
Sección de Neumología. Hospital Arnau de Vilanova. Lleida
J.M. Tura*, M. Marsal**, F. Morell***, Ll. Bernadó****
* Laboratorio de Microscopía Electrónica del ITQT. Consejo Superior de Investigaciones Científicas. Barcelona
** Departamento de Metalurgia y Siderurgia de la ETSII. Universidad Politécnica. Barcelona
*** Sección de Neumología. Hospital General Vall d’Hebrón. Barcelona
**** Departamento de Anatomía Patológica. Hospital General Vall d’Hebrón. Barcelona
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Se ha realizado un análisis mineralógico con microscopia electrónica de superficie (MES) y análisis dispersivo de energía (ADE), técnicas de mayor sensibilidad y especifidad que la microscopia óptica, en dnco muestras de tejido pulmonar en las que se han identificado fibras de asbesto. En tres de ellas se había estableado un diagnóstico de asbestosis después del examen con microscopia óptica y de luz polarizada. Todas las muestras mostraron fibras de asbesto en número incontable, pero en dos de ellas se identificó un número también incontable de partículas de silicatos no fibrosos, diagnosticándose definitivamente de silicoasbestosis. Las dos muestras restantes habían sido diagnosticadas previamente de fibrosis pulmonar idiopática. En las dos se identificaron incontables fibras de asbesto.

El MES con ADE, por ser una técnica mineralógica no destructiva y fácilmente reprodudble, puede ser muy útil en el diagnóstico de las asbestosis.

In five samples of lung tissue in which asbestos fibers had been identified, a mineralogic analysis by means of surface electron microscopy and energy dispersion analysis, which are techniques whose sensitivity and specificity are, higher than those of light microscope, were carried out. In three of such samples, a diagnosis of asbestosis has been established by means of light and polarizing microscope study. All samples contained uncountable amounts of asbestos fibers, and in two of them, there were also uncountable amounts of non fibrous silicate particles, thus being diagnosed of silicoasbestosis. The two remaining samples had been previously diagnosed of idiopathic pulmonary fibrosis. Uncountable asbestos fibers had been identified in the two samples.

Surface electron microscope study and energy dispersion analysis may be useful in diagnosing asbestosis because they are mineralogic techniques non destructive and easily reprodudble.

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Copyright © 1988. Sociedad Española de Neumología y Cirugía Torácica
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