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Trichophyton violaceum
HistoryThis section has been translated automatically.
Sabouraud and Bodin, 1902
General definitionThis section has been translated automatically.
Anthropophilic dermatophyte.
Occurrence/EpidemiologyThis section has been translated automatically.
Worldwide spread. Epidemic in the Middle East, Africa, Eastern Europe, Japan and Russia. Rarely occurring in Central Europe (mostly among migrants).
Clinical pictureThis section has been translated automatically.
S.u. Tinea corporis, tinea capitis, tinea capitis superficialis. Common pathogen of tinea capitis. Mostly extensive infestation of integument and capillitium. Infection and destruction of the hair papilla. With a weakened immune status an invasion of the lymphatic system is possible. No spontaneous healing during puberty. Mostly chronic disease progression.
MicroscopyThis section has been translated automatically.
- Plenty of septated mycelium. Terminal swollen or bulbous hyphae with dichotomous branching.
- Chlamydospores: Very numerous, thick-walled, mostly terminal.
- Microconidia: Pyriform, usually only visible on thiamin-agar.
- Macroconidia: Rare, mostly only in older cultures, thin-walled, length: 10-25 μm, width: 2-8 μm, 3-8 chambers, many different forms, mostly only visible on thiamin-agar.
LiteratureThis section has been translated automatically.
- Aman S (2001) Distal and lateral subungual onychomycosis with primary onycholysis caused by Trichophyton violaceum. Br J Dermatol 144: 212-213
- Kolivras A et al (2003) Tinea capitis in Brussels: Epidemiology and New Management Strategy. Dermatology 206: 384-387
- Metin A et al (2002) Tinea capitis in Van, Turkey. Mycoses 45: 492-5
- Monod M et al (2002) Survey of dermatophyte infections in the Lausanne area Switzerland. Dermatology 205: 201-203
- Noyan A et al (2001) Tinea of the scalp and eyebrows caused by Trichophyton violaceum in a 62-year-old diabetic woman. J Eur Acad Dermatol Venereol 15: 88-89