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Tinea Corporis - Causes, Symptoms & Treatment

Tinea Corporis is also called as Ringworm and Tinea circinata. It is a superficial dermatophyte infection and characterized by either inflammatory or noninflammatory lesions on the glabrous skin (ie, skin regions except the scalp, groin, palms, and soles). Three anamorphic (asexual or imperfect) genera cause dermatophytoses premary is Trichophyton secondry is Microsporum, and last is Epidermophyton. Tinea Corporis spreads readily, as those infected are contagious even before they show symptoms of the disease. Participants in contact sports such as wrestling have a risk of contracting the fungal infection through skin-to-skin contact. Ringworm is also a common infection in domestic animals, especially cattle and cats. Tinea corporis is a common infection more often seen in typically hot, humid climates. T rubrum is the most common infectious agent in the world and is the source of 47% of tinea corporis cases. Trichophyton tonsurans is the most common dermatophyte to cause tinea capitis.

Dermatophytes preferentially inhabit the nonliving, cornified layers of the skin, hair, and nail, which is attractive for its warm, moist environment conducive to fungal proliferation. Dermatophytes may infect humans (anthropophilic) and infect nonhuman mammals (zoophilic) or reside primarily in the soil (geophilic). hey generally do not invade deeply, owing to nonspecific host defense mechanisms that can include the activation of serum inhibitory factor, complement, and polymorphonuclear leukocytes. Fungi may release keratinases and other enzymes to invade deeper into the stratum corneum, although typically the depth of infection is limited to the epidermis and, at times, its appendages. People with an anthropophilic tinea capitis infection are more likely to develop associated tinea corporis. Prevalence of tinea corporis caused by T tonsurans is increasing. Microsporum canis is the third most common causative organism and associated with 14% of tinea corporis infections.

Causes of Tinea Corporis

Common causes of Tinea Corporis

  • Dermatophytes.
  • T rubrum.
  • T tonsurans.
  • Trichophyton mentagrophytes.
  • M canis.
  • T concentricum.
  • Fungal arthroconidia.

Symptoms of Tinea Corporis

Common Symptoms of Tinea Corporis

  • Itching.
  • Red-colored skin rash.
  • Skin scraping.

Treatment of Tinea Corporis

Common Treatment of Tinea Corporis

  • Topical therapy is recommended for a localized infection. It should be applied to the lesion and at least 2 cm beyond this area once or twice a day for at least 2 weeks, depending on which agent is used. Topical azoles and allylamines show high rates of clinical efficacy. These.
  • Oral terbinafine may be used at a dosage of 250 mg/d for 2 weeks; the potential exists for cytochrome P-450, specifically CYP-2D6, drug interactions with this agent.
  • Fluconazole at 50-100 mg/d or 150 mg once weekly for 2-4 weeks may be used, with good results. Oral itraconazole at 100 mg/d for 2 weeks shows high efficacy. With an increased dose of 200 mg/d, the treatment duration may be reduced to 1 week
  • Good general hygiene helps prevent ringworm infections.
  • Antifungal drugs (miconazole , clotrimazole , terbinafine , butenafine and tolnaftate) removed infection.
  • Avoid contact with infected pets as much as possible.

 

 

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