Trichophyton verrucosum

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Bodin, 1902

General definition
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Primary zoophilic, secondary anthropophilic, human pathogenic dermatophyte. Especially cattle and their environment (stables) are direct and indirect sources of infection.

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Worldwide spread. Common among rural dwellers with contact to pets. Men are affected significantly more often than women.

Clinical picture
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Preferably infestation of the hair follicles of the capillitium and the beard. S.u. Tinea barbae, tinea capitis, tinea capitis profunda. Rare infestation of the hairless skin, see below Tinea corporis.

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  • Long, gnarled, terminal thickened hyphae.
  • Arthrospores: Numerous, simultaneously growing, chain-like arrangement, right-angled lateral branches.
  • Chlamydospores: Numerous, thick-walled, usually arranged intercalary.
  • Microconidia: Rare, mostly pyriform, rarely rat-tail-like or pointed, arranged laterally on the hyphae, length: 3-5 μm, width: 2-3 μm.
  • Macroconidia: Rare, smooth and thin-walled, small (length: 12-25 μm, width: 4-8 μm), 3-8 chambers, terminal.

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  1. Altindis M et al (2003) Prevalence of tinea capitis in primary schools in Turkey. Mycoses 46: 218-221
  2. Czaika V et al (1998) Dermatomycosis caused by Trichophyton verrucosum in mother and child. dermatologist 49: 576-580
  3. Korman TM et al (1998) Inflammatory tinea corporis due to Trichophyton verrucosum. Clin Infect Dis 26: 220-221
  4. Maeda M etv al (2002) Tinea barbae due to Trichophyton verrucosum. Eur J Dermatol 12: 272-274
  5. Monod M (2002) Survey of dermatophyte infections in the Lausanne area Switzerland. Dermatology 205: 201-203
  6. Seebacher C (2000) Epidemiology, clinic and treatment of dermatomycoses caused by zoophilic dermatophytes. Mycoses 43: S4-7


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Last updated on: 29.10.2020