Dermatology Book

ErythrasmaAka: Cutaneous Erythrasma, Corynebacterium minutissimum


  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

Corynebacterium minutissimum (C0010154)

ConceptsBacterium (T007)
EnglishCorynebacterium minutissimum
Parent ConceptsCorynebacterium (C0010148)
Derived from the NIH UMLS (Unified Medical Language System)

Erythrasma (C0014752)

Definition (MSH)A chronic bacterial infection of major folds of the skin, caused by Corynebacterium minutissimum.
ConceptsDisease or Syndrome (T047)
EnglishErythrasma, Infection due to Corynebacterium minutissimum
Spanisheritrasma, infeccion por Corynebacterium minitissimum, infeccion por Corynebacterium minutissimum
Parent ConceptsCorynebacterium Infections (C0010153), Skin Diseases, Bacterial (C0162627), Non-pyogenic bacterial infection of skin (C0406142), Ambiguous concept (C1274012), Duplicate concept (C1274013)
Derived from the NIH UMLS (Unified Medical Language System)

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