Tinea versicolor
Tinea versicolor is a topic covered in the Johns Hopkins ABX Guide.
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PATHOGENS
- Malassezia furfur (Pityrosporum ovale): the pathogen in a majority of cases.
- Malassezia globosa
- Malassezia symphodialis
- Malassezia silffiae
- Growth of these yeasts in cultures requires special media.
- Sabouraud dextrose agar overlaid with olive oil required with incubation at 30°C.
- Other strategies include:
- Modified Leeming and Notham agar (Kanekoet al.2007)
- Modified Dixon’s agar
- CHROMagar Malassezia medium is commercially available and isolates most common Malassezia species.
- Other strategies include:
- Colonies often difficult to distinguish in the oil layer.
- Sabouraud dextrose agar overlaid with olive oil required with incubation at 30°C.
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PATHOGENS
- Malassezia furfur (Pityrosporum ovale): the pathogen in a majority of cases.
- Malassezia globosa
- Malassezia symphodialis
- Malassezia silffiae
- Growth of these yeasts in cultures requires special media.
- Sabouraud dextrose agar overlaid with olive oil required with incubation at 30°C.
- Other strategies include:
- Modified Leeming and Notham agar (Kanekoet al.2007)
- Modified Dixon’s agar
- CHROMagar Malassezia medium is commercially available and isolates most common Malassezia species.
- Other strategies include:
- Colonies often difficult to distinguish in the oil layer.
- Sabouraud dextrose agar overlaid with olive oil required with incubation at 30°C.
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