Tinea

Background

• Infection caused by dermatophytes that feed on keratin
• Variations
  • Tinea capitis
  • Tinea corporis
  • Tinea pedis
  • Tinea cruris

Diagnosis

• Scaly, variable pruritus
• Corporis: ring appearance w/ central clearing
• Capitis: patchy alopecia

Tinea Corporis

Tinea Capitis

DDx

1. Pityriasis rosea
2. Lichen planus
3. Psoriasis
4. Eczema
5. Contact dermatitis

Treatment

• Topical antifungal tx for all except capitis

1. Clotrimazole 1% BID x2-3wk
   1. Must use for 7-10d beyond resolution of lesions
2. Capitis
   1. Griseofulvin 20-25mg/kg/d or BID
      1. Usually requires 8wk of tx
   2. Selenium or ketoconazole shampoos are adjunct tx
   3. Okay for child to go to school
3. Kerion
   1. Cephalexin 40mg/kg/d in 4 divided doses in addition to systemic antifungal tx

Source

• Tintinalli
• Images provided by University of Iowa Dept. of Dermatology and Dr. Lucille K. Georg (CDC)

See Also

• Rashes