PAS stain. An example of Aspergillus fumigatus.
(PAS-stained) in a patient with chronic granulomatous disease showing a 45 degree branching hypha within a giant cell. Rather bulbous hyphal ends are also seem, which is sometimes found inAspergillus spp. infections, histologically. (x800)
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Notes:
Comparison of GMS and PAS stains. Patient with disseminated Trichosporon spp. infection. Both x60. In the GMS image, substantial background staining of elastin is seen, with more prominent yeasts superimposed. In contrast, the PAS stain shows the tissue morphology, with bright pink yeasts also visible.
Allergic Aspergillus Sinusitis -Patient AM. C – Extensive involvement of both maxillary sinuses, with soft tissue swelling. Swelling of both turbinates also visible.
Allergic Aspergillus Sinusitis -Patient AM. D – Marked involvement of ehmoidal air cells on the right , together with the inferior aspect of the sphenoid sinus. The left side is almost clear of disease.
