Figure 8.

Microscopic images of Mucor spp. (a) Haematoxylin and eosin (H&E)-stained section from left maxillary sinus shows many broad aseptate hyphae with predominant 90^o branching (original magnification 400x). Inset shows Grocott methenamine-silver (GMS) stain. (b) H&E-stained section from right orbital tissue showing vessel wall invasion and luminal clogging by broad, aseptate hyphae (original magnification 100x). Inset shows GMS stain of the same. (c) GMS stain of a section from right orbital tissue showing neural invasion by fungi (original magnification 400x). Inset shows H&E-stained section from orbital apex tissue with neural invasion by fungi. (d) Periodic acid-Schiff-stained section from nasal mucosa demonstrating the presence of mixed fungi with broad aseptate hyphae (Mucor spp.) and thin septate hyphae with acute angle branching (Aspergillus spp.) (original magnification 400x). Inset (left) shows GMS-stained section of the same and inset (right) shows fruiting body of Aspergillus.