II. Causes: Vascular Reaction (Flat topped, confluent, purpuric)

  1. Vascular lesions blanch on pressure (unlike Purpura and Contusions which do not)
  2. Purpuric Erythema
    1. Leukocytoclastic Vasculitis
  3. Persistent Erythema
    1. Erythema Multiforme
    2. Erythema Nodosum
  4. Transient Erythema
    1. Urticaria
    2. Angioedema

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