II. Pathophysiology

  1. Cellulitis caused by Erysipelothrix rhusiopathiae

III. Epidemiology

  1. More common in summer
  2. Food Handlers
    1. Raw Saltwater fish or shellfish
    2. Raw Poultry or meat
    3. Animal Hides

IV. Symptoms

  1. Onset one week after hand abrasions
  2. Pruritic, painful Rash develops at abrasion site

V. Signs

  1. Locally tender violaceous swellings with raised margin
  2. Lesions spread peripherally
  3. Brown pigmentation of lesions then follows

VI. Differential Diagnosis

  1. See Cellulitis
  2. Erysipelas
    1. Erysipeloid is a slower, subacute infection

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