Tinea Infections, Cutaneous
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Basics
Description
- Superficial fungal infections of the hair, skin, or nails:
- Named for location of infection
- Usually confined to the stratum corneum layer
- Among the most common diseases worldwide
- Requires keratin for growth, so does not involve mucosa
Etiology
- Dermatophytes:
- Microsporum
- Trichophyton
- Epidermophyton
- Malassezia furfur, a yeast, is the etiologic agent of tinea versicolor (not a true tinea)
- Trauma or maceration of the skin may allow fungal entry into skin
- Transmission may be person to person, animal to person, or soil to person
- Fomites may play a role as well
Pediatric Considerations
- Fungi can be spread from toys and brushes
- Tinea unguium is rare in children and is associated with:
- Down syndrome
- Immunosuppression
- Tinea pedis or capitis
-- To view the remaining sections of this topic, please log in or purchase a subscription --
Basics
Description
- Superficial fungal infections of the hair, skin, or nails:
- Named for location of infection
- Usually confined to the stratum corneum layer
- Among the most common diseases worldwide
- Requires keratin for growth, so does not involve mucosa
Etiology
- Dermatophytes:
- Microsporum
- Trichophyton
- Epidermophyton
- Malassezia furfur, a yeast, is the etiologic agent of tinea versicolor (not a true tinea)
- Trauma or maceration of the skin may allow fungal entry into skin
- Transmission may be person to person, animal to person, or soil to person
- Fomites may play a role as well
Pediatric Considerations
- Fungi can be spread from toys and brushes
- Tinea unguium is rare in children and is associated with:
- Down syndrome
- Immunosuppression
- Tinea pedis or capitis
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