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Cutaneous Blastomycosis

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  1. See Also
    1. Blastomycosis
  2. Etiology
    1. Blastomyces dermatidis
  3. Pathophysiology
    1. See Blastomycosis
    2. Direct contact of non-intact skin with contaminated soil or decomposing timber
  4. Symptoms
    1. Painful facial lesions (Pustules, ulcers or wart-type lesions)
  5. Signs
    1. Distribution: Face (esp. eyebrows)
    2. Verrucous form
      1. Starts as Papule or Pustule with slow enlargement
      2. Later, the lesion forms crust with irregular borders
      3. Secondary subcutaneous Nodules and abscesses may drain pus
    3. Ulcerative form
      1. Ulcerated lesion with sharp border
      2. Friable red granulation tissue at ulcer base may bleed easily
  6. Diagnosis
    1. Microscopy of purulent discharge with Potassium Hydroxide or Calcofluor stain
    2. Skin biopsy
  7. Differential Diagnosis
    1. Furuncle
    2. Contagious Ecthyma (Orf)
    3. Pyogenic Granuloma
    4. Squamous Cell Carcinoma
  8. Management
    1. See Blastomycosis
  9. References
    1. Altman (2007) Am Fam Physician 76:1533
    2. Bradsher (2003) Infect Dis Clin North Am 17:21

Cutaneous blastomycosis (C0343922)

ConceptsDisease or Syndrome (T047)
ICD9116.0
EnglishCutaneous blastomycosis, Gilchrist's disease affecting skin, North American blastomycotic dermatitis, North American cutaneous blastomycosis
Spanishblastomicosis cutanea, blastomicosis cutanea norteamericana, dermatitis blastomicotica norteamericana, enfermedad de Gilchrist que afecta la piel
Parent ConceptsBlastomycosis (C0005716), Skin Diseases, Infectious (C0037278), Fungal infection by site (C0729543), Outdated concept (C1274014)
SourcesMTHICD9, SCTSPA, SNOMEDCT
Derived from the NIH UMLS (Unified Medical Language System)



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