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46. CMV lung: Difference between revisions
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'''Theory''': | '''Theory''': | ||
Cytomegalovirus doesn’t cause pneumonia, it causes pneumonitis, because it’s the interstitium that’s inflamed and not the alveolar space. | Cytomegalovirus doesn’t cause pneumonia, it causes pneumonitis, because it’s the interstitium that’s inflamed and not the alveolar space. Cells infected by the virus become very large, and accumulate inclusion bodies, which are aggregates of protein that are visible macroscopically.[[File:CMV lung alveoli.png|thumb|Yes, these are alveoli|left]] | ||
Cells infected by the virus become very large, and accumulate inclusion bodies, which are aggregates of protein that are visible macroscopically. | |||
[[File:CMV lung alveoli.png|thumb|Yes, these are alveoli|left]] | |||
[[File:CMV lung owl cells.png|thumb|Owl’s eye morphology. Note the large size and the white “halo” around the nucleolus.|left]] | [[File:CMV lung owl cells.png|thumb|Owl’s eye morphology. Note the large size and the white “halo” around the nucleolus.|left]] | ||
[[File:CMV lung owl cells 2.png|thumb|Another one. Note the inclusion bodies inside the cytoplasm]] | [[File:CMV lung owl cells 2.png|thumb|Another one. Note the inclusion bodies inside the cytoplasm]] | ||
[[Category:Pathology 1 - Histopathology slides]] | [[Category:Pathology 1 - Histopathology slides]] | ||