El tratamiento endoscópico de las fístulas de LCR se ha convertido en el gold standard. No obstante, aquellas localizadas en seno frontal presentan serias dificultades para su abordaje endoscópico, especialmente si se asocia la existencia de un meningoencefalocele. En estos casos se debe valorar el abordaje externo con obliteración del seno frontal. Presentamos dos casos de fístulas de LCR cuyo origen fue debido a sendos meningoencefaloceles protruyendo a través de la pared posterior del seno frontal y que precisaron de un abordaje externo para su tratamiento.Palabras clave: Seno frontal, meningoencefalocele, obliteración.
ABSTRACTEndoscopic treatment of CSF leak is the Gold Standard. Nevertheless, at frontal sinus it is very difficult the endoscopic approach, especially if there is a meningoencephalocele associated. In these cases, an external approach with frontal sinus obliteration should be considered. We present two cases of CSF leaks whose origin are meningoencephaloceles that protrude from posterior frontal sinus wall, treated with an external approach.
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