Mould Identification: A Virtual Self Assessment
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Unknown = Aspergillus flavus complex
|A 61-year-old man suffering from acute myeloid leukaemia presented with chest pain and dyspnoea. Computer tomography revealed diffuse bilateral infiltrates which were considered to be suspicious for an invasive pulmonary aspergillosis of the left upper lobe. A biopsy was taken which showed the presence of fungal elements and the culture shown below was isolated.|
|Direct Microscopy (methenamine silver stain)|
Methenamine silver stain section showing branching septate hyphae typical for Aspergillus.
Colonies of A. flavus complex are granular, flat, often with radial grooves, yellow at first but quickly becoming bright to dark yellow-green with age.
Conidial head of A. flavus complex. Note: conidial heads with both uniseriate and biseriate arrangement of phialides may be present.
What is your identification?Aspergillus flavus complex
Aspergillus fumigatus complex
Aspergillus nidulans complex