Figure 8

A. Mast cell (MC) degranulation in hyperplastic mucosa of rat maxillary sinus invaded by A. fumigatus (Toluidine blue staining, ×40). B. Mast cell (MC) degranulation in rat nasal septum invaded by A. fumigatus (Toluidine blue staining, ×40). Red arrow indicates MC degranulation. Black arrow indicates A. fumigatus hyphae.