Tinea Corporis Clinical Presentation
- Author: Jack L Lesher Jr, MD; Chief Editor: Dirk M Elston, MD more...
History
Symptoms, contact history, recent travel, and international residence are relevant clues in the history of a person with tinea corporis.
- Infected patients may have variable symptoms.
- Patients can be asymptomatic.
- A pruritic, annular plaque is characteristic of a symptomatic infection. Patients occasionally can experience a burning sensation.
- HIV-positive or immunocompromised patients may develop severe pruritus or pain.
- Tinea corporis may result from contact with infected humans, animals, or inanimate objects. The history may include occupational (eg, farm worker, zookeeper, laboratory worker, veterinarian), environmental (eg, gardening, contact with animals), or recreational (eg, contact sports, contact with sports facilities) exposure.
- A few clinical variants are described, with distinct presentations.
- Majocchi granuloma, typically caused by T rubrum, is a fungal infection in hair, hair follicles, and, often, the surrounding dermis, with an associated granulomatous reaction. Majocchi granuloma often occurs in females who shave their legs.
- Tinea corporis gladiatorum is a dermatophyte infection spread by skin-to-skin contact between wrestlers.[7, 8]
- Tinea imbricata is a form of tinea corporis found mainly in Southeast Asia, the South Pacific, Central America, and South America. It is caused by Trichophyton concentricum.[9]
- Tinea incognito is tinea corporis with an altered, nonclassic presentation due to corticosteroid treatment.[10]
Physical
- Tinea corporis can manifest in a variety of ways.
- Typically, the lesion begins as an erythematous, scaly plaque that may rapidly worsen and enlarge, as shown in the image below.
Large, erythematous, scaly plaque. - Following central resolution, the lesion may become annular in shape, as is shown in the image below.
Annular plaque. - As a result of the inflammation, scale, crust, papules, vesicles, and even bullae can develop, especially in the advancing border.[11]
- Rarely, tinea corporis can present as purpuric macules, called tinea corporis purpurica.[12] One report describes 2 cases of tinea corporis purpurica resulting from self-inoculation with Trichophyton violaceum.[13]
- Infections due to zoophilic or geophilic dermatophytes may produce a more intense inflammatory response than those caused by anthropophilic microbes.
- HIV-infected or immunocompromised patients often have atypical presentations including deep abscesses or a disseminated skin infection.
- Typically, the lesion begins as an erythematous, scaly plaque that may rapidly worsen and enlarge, as shown in the image below.
- Majocchi granuloma manifests as perifollicular, granulomatous nodules typically in a distinct location, which is the lower two thirds of the leg in females.
- Tinea corporis gladiatorum often manifests on the head, neck, and arms, which is a distribution consistent with the areas of skin-to-skin contact in wrestling.
- Tinea imbricata is recognized clinically by its distinct scaly plaques arranged in concentric rings.
Causes
- Tinea corporis can be caused by a variety of dermatophytes, although prevalence and patient history are very helpful in identifying the most likely organism.
- Dermatophytoses may be acquired from different sources, such as people, animals, or soil.
- Infected humans are the most common source of tinea corporis in the United States.
- Contact with contaminated household pets, farm animals, and fomites (eg hair brushes, towels) can spread infection.
- T verrucosum causes 98% of dermatophyte infections in cattle and is showing increasing prevalence of infection in human contacts.
- T mentagrophytes is spread by rabbits, guinea pigs, and small rodents.[14]
- Infection with M gypseum, a geophilic organism, can mimic tinea imbricata in presentation.
- Because fungal arthroconidia can survive in the environment, recurrent outbreaks may occur.
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