Date: 3 April 2014
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.
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Aspergillosis in the coral sea fan Gorgonia ventalina. Sea fan coral Gorgonia ventalina, Florida Keys, USA. Depth ~5 metres, showing a lesion surrounded by a band of purple tissue. Central areas of the lesion are devoid of coral tissue revealing the underlying axial skeleton. The purple areas are devoid of coral polyps and result from the increased production of purple sclerites (small, non-fused, carbonate skeletal elements). The purpled area also indicates the location of high fungal hyphal density and el
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Aspergillosis in the coral sea fan Gorgonia ventalina. In the Caribbean ond offshore USA the sea fan coral species Gorgonia ventalina is undergoing an epizootic due to Aspergillus sydowii infection. This species of Aspergillus is also known to be associated with food contamination and for opportunistic infection in humans.Taken in San Salvador, Bahamas. Bar represents 5cm. This sea fan was heavily colonized by algae.A -tumours and galls B -lesion C -purplingGalls are composed of axial skeleton and scl
