RESUMO
El escleromixedema es un tipo de mucinosis que presenta unas características clínicas e histopatológicas bien definidas. En este artículo se describen los hallazgos observados con el microscopio electrónico de transmisión de un caso estudiado recientemente. Se trataba de una paciente de 56 años con una erupción de pápulas liquenoides localizadas en la cara, la parte superior del tronco y en los miembros. Se acompañaba de gammapatía IgG l. El estudio con el microscopio óptico mostró los hallazgos típicos de escleromixedema. El estudio de microscopia electrónica puso de manifiesto la existencia de un elevado número de fibroblastos con una gran actividad de síntesis y liberación de fibras de colágena y sustancia mucoide
Scleromyxedema is a type of mucinosis that presents with some well defined clinical and histopathological characteristics. We describe the findings observed with transmission electron microscopy in a case that we recently studied. The patient was a 56-year-old female with a localized eruption of lichenoid papules on the face, upper trunk and limbs. It was accompanied by IgG lambda gammopathy. Optical microscopy showed the findings typical of scleromyxedema. Electron microscopy revealed the existence of a large number of fibroblasts with high activity levels in the synthesis and release of collagen fibers and a mucoid substance
Assuntos
Feminino , Pessoa de Meia-Idade , Humanos , Mixedema/diagnóstico , Mixedema/terapia , Mucinoses/complicações , Mucinoses/diagnóstico , Microscopia Eletrônica/métodos , Erupções Liquenoides/complicações , Erupções Liquenoides/diagnóstico , Melfalan/uso terapêutico , Prednisona/uso terapêutico , Imunossupressores/uso terapêutico , Fibroblastos/patologia , Mucinoses/classificação , Mucinoses/patologia , Capilares/citologia , Capilares/patologia , Endotélio/citologia , Endotélio/patologiaRESUMO
Scleromyxedema is a type of mucinosis that presents with some well defined clinical and histopathological characteristics. We describe the findings observed with transmission electron microscopy in a case that we recently studied. The patient was a 56-year-old female with a localized eruption of lichenoid papules on the face, upper trunk and limbs. It was accompanied by IgG lambda gammopathy. Optical microscopy showed the findings typical of scleromyxedema. Electron microscopy revealed the existence of a large number of fibroblasts with high activity levels in the synthesis and release of collagen fibers and a mucoid substance.
