Aspergillosis

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  • Aspergillus fumigatus from the soil.
    • It is named from its sporangia that resemble a container of holy water and only forms when growing with contact to air.
      • Monomorphic septate hyphae that branch 45° acute angle
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      • Multiple haemorrhagic infarcts resulting from vasoinvasive Aspergillus arose in a child with severe combined immunodeficiency syndrome.
      • Typical lesions are circumscribed, hemorrhagic, and softened.
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  • Numbers
    • 3rd most frequent fungal CNS infection.
  • Rarely diagnosed before death.
  • May be associated with cerebral abscess in organ transplant patients
  • Angioinvasive → hemorrhagic cerebritis and rarely meningitis.
  • Treatment
    • Amphotericin B + 5-fluorocytosine