Dermatology Book

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ErythrasmaAka: Cutaneous Erythrasma, Corynebacterium minutissimum

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  1. See Also
    1. Intertrigo
  2. Risk Factors
    1. Similar to risks associated with Intertrigo
  3. Symptoms
    1. Usually asymptomatic
    2. May be pruritic in some cases
  4. Signs
    1. Small red-brown Macules (may form larger patches)
    2. Distribution in intertriginous areas
      1. Interdigital web spaces
      2. Gluteal crease
      3. Inguinal area
      4. Axilla
      5. Inframammary
  5. Diagnosis
    1. Wood's Lamp: Fluoresces coral red
    2. Gram Stain: Gram Positive rod with long filaments
  6. Differential Diagnosis
    1. See Intertrigo
    2. Cutaneous Candidiasis
    3. Dermatophytes
      1. Tinea Pedis
      2. Tinea Cruris
    4. Psoriasis
  7. Managment
    1. Antibiotics
      1. Erythromycin 250 mg orally qid for 5 days
      2. Clarithromycin 1 gram orally for 1 dose
    2. Topical Antifungal agents with activity in Erythrasma
      1. Miconazole
      2. Clotrimazole
      3. Econazole
    3. Treat coexisting fungal infection (see Intertrigo)
    4. Adjunctive topical agents
      1. Cleocin-T or Erythromycin gel
      2. Whitfield's Ointment
      3. Sodium fusidate ointment
      4. Antibacterial soap
  8. Prevention
    1. See Intertrigo
  9. References
    1. Habif (2004) Clinical Dermatology, p. 419
    2. Holdiness (2003) Am Fam Physician 67(2):254
    3. Janniger (2005) Am Fam Physician 72:833

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