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Microsporum gypseum infection in the Siena area in 2005-2006
1Department of Clinical Medicine and Immunological Sciences, Dermatology Section, Siena University, Siena, Italy. romanoclara@unisi.it
Abstract:
Fourteen cases of dermatophytosis caused by Microsporum gypseum, representing 6.8% of all dermatophytic infections reported, were diagnosed in Siena, Italy, between 2005 and 2006. There were as follows: six cases of tinea corporis, one case of tinea corporis associated with tinea capitis, one case of tinea corporis associated with tinea barbae, one kerion on the head, one tinea cruris, one tinea faciei, one tinea barbae, two onychomycosis. In the three subjects with tinea corporis, the clinical appearance was impetigo-like, psoriasis-like and pityriasis rosea-like respectively. In another case, the lesion was indicative of tinea imbricata. The diagnosis was based on mycological examination. In six cases, the source of infection was a cat, whereas in the others it was contact with soil.
Insights
Microsporum gypseum caused 6.8% of dermatophytosis cases in Siena, Italy. Infections presented with various tinea types, including skin, scalp, and nail conditions, often linked to cats or soil exposure.
Area of Science:
- Mycology
- Dermatology
- Infectious Diseases
Background:
- Dermatophytosis is a common fungal infection affecting skin, hair, and nails.
- Microsporum gypseum is a geophilic dermatophyte, meaning it primarily inhabits soil.
- Understanding the epidemiology and clinical presentation of M. gypseum infections is crucial for diagnosis and treatment.
Purpose of the Study:
- To report the incidence and clinical characteristics of dermatophytosis caused by Microsporum gypseum in Siena, Italy.
- To identify the sources of infection and common clinical manifestations.
Main Methods:
- Retrospective analysis of diagnosed dermatophytosis cases between 2005 and 2006 in Siena, Italy.
- Mycological examination for diagnosis of fungal infections.
- Clinical data collection on infection site and patient history.
Main Results:
- Fourteen cases (6.8%) of dermatophytosis were attributed to Microsporum gypseum.
- Common presentations included tinea corporis (6 cases), tinea capitis, tinea barbae, tinea cruris, tinea faciei, and onychomycosis.
- Unusual clinical appearances for tinea corporis were noted, resembling impetigo, psoriasis, and pityriasis rosea.
- Infection sources were identified as cats (6 cases) and soil contact.
Conclusions:
- Microsporum gypseum is a relevant cause of dermatophytosis in the studied region.
- The clinical spectrum of M. gypseum infections can be diverse, mimicking other dermatological conditions.
- Awareness of zoonotic (cats) and geophilic (soil) transmission routes is important for public health.
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