As it has been reported in the literature, in our laboratory some samples for which a positive direct examination was obtained, it was impossible to isolate an etiologic agent. This could be due to the fact that the sample was not representative because there is a higher possibility that the fungus is alive in the proximal area of the nail where access for sample collection is more difficult.
Como reportado en la literatura, en nuestro laboratorio en algunas muestras con examen directo positivo, no se logró el aislamiento del agente etiológico; lo cual, podría deberse a que la muestra no es representativa, ya que hay más posibilidad que el hongo esté vivo en la parte proximal de la uña, donde se hace difícil el acceso para la toma de la muestra.