The Fontana-Masson stain can be used to detect melanin of dematiaceous fungi such as Curvularia lunata and Bipolaris hawaiiensis in tissue. This stain is often used to identify fungi that may not have an evident brown color in hematoxylin-eosin-stained sections. However, it is not clear whether hyphae of nondematiaceous fungi can be stained with the Fontana-Masson procedure.
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