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45. Aspergillosis of the lung: Difference between revisions

45. Aspergillosis of the lung (view source)

Revision as of 13:39, 5 July 2024

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'''Staining''': PAS
[[File:Aspergillosis lung overview.png|thumb|Overview. It looks like an angry hen.]]'''Staining''': PAS


'''Organ''': Lung
'''Organ''': Lung
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* Immunocompromised patients
* Immunocompromised patients


'''Theory''':
'''Theory''':[[File:Aspergillosis lung septae.png|thumb|Close-up of the fungi inside the artery. Those transverse PAS-positive things inside the fungi are septa or hyphae. Note how it’s the cell wall of the fungi that is the most PAS positive]]This slide shows a case of necrotizing pneumonia secondary to infection by the fungus ''aspergillus''. The fungi themselves have PAS positive cell walls and can be seen in the artery in the lower right corner.
 
This slide shows a case of necrotizing pneumonia secondary to infection by the fungus ''aspergillus''. The fungi themselves have PAS positive cell walls and can be seen in the artery in the lower right corner.


The fungi have septa/hyphae that are PAS positive also, as seen on the figure below.
The fungi have septa/hyphae that are PAS positive also, as seen on the figure below.
[[File:Aspergillosis lung overview.png|center|thumb|Overview. It looks like an angry hen.]]
[[File:Aspergillosis lung necrotising pneumonia.png|thumb|Here you can see the necrotizing pneumonia. Note how there is necrotic debris inside the alveoli|left]]
[[File:Aspergillosis lung septae.png|center|thumb|Close-up of the fungi inside the artery. Those transverse PAS-positive things inside the fungi are septa or hyphae. Note how it’s the cell wall of the fungi that is the most PAS positive]]
[[File:Aspergillosis lung necrotising pneumonia.png|center|thumb|Here you can see the necrotizing pneumonia. Note how there is necrotic debris inside the alveoli]]
[[Category:Pathology 1 - Histopathology slides]]
[[Category:Pathology 1 - Histopathology slides]]