Trichophyton terrestre

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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History
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Durie and Frey, 1957

General definition
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Geophilic dermatophyte and saprophyte. Pathogenicity is controversial. For humans almost apathogenic! Mostly found as contamination in dermatological test materials of the interdigital spaces and soles of the feet. In this respect interesting from a differential diagnostic point of view.

Occurrence/Epidemiology
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Spread throughout the world.

Clinical picture
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Microscopy
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  • Strong, septated hyphae. Spiral hyphae (therefore easily confused with T. mentagrophytes!).
  • Microconidia: Very common and numerous, unicellular, elongated form with a broad base.
  • Macroconidia: Multicellular, smooth and thin-walled, elongated or cylindrical form, tapering at the ends.
  • Rarely chlamydospores.

Literature
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  1. Ali-Shtayeh MS et al (2002) Ecology of dermatophytes and other keratinophilic fungi in swimming pools and polluted and unpolluted streams. Mycopathologia 156: 193-205
  2. Lehenkari E et al (1995) Dermatophytes in northern Finland in 1982-90 Mycoses 38: 411-414
  3. Lupa S et al (1999) Epidemiology of dermatomycoses of humans in central Poland. Part III Tinea pedis. Mycoses 42: 563-565

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Please ask your physician for a reliable diagnosis. This website is only meant as a reference.

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Last updated on: 29.10.2020