Fig. 6.

Chronic invasive fungal rhinosinusitis a low power of inflamed and fibrotic sinonasal mucosa in liver transplant patient with chronic invasive fungal rhinosinusitis (Hematoxylin and eosin; original magnification ×12.5). b, c Chronic invasive FRS with extensive sinonasal mucosal necrosis/infarction with visible fungal organisms in liver transplant patient with symptoms greater than 3 months duration. b Fungi within blood vessels (Hematoxylin and eosin; original magnification ×100). d Silver stain shows fungal hyphae infiltrating sinonasal mucosa in chronic invasive FRS (Hematoxylin and eosin; original magnification ×50)