Also known as: livedoid vasculitis, segmental hyalinizing vasculitis, livedo reticularis with seasonal ulceration

Clinical Features:

• Most prevalent during the summer and winter
• Usually affects middle-aged to elderly women
• Most common on the lower legs
• Presents with purpuric macules and papules which progress to painful ulcers
• When the ulcers heal, they leave white atrophic areas.
• There is often an associated livedo reticularis.

Histologic Features:

• Early lesions:
  • Fibrinoid material in the walls or lumina of blood vessels
  • Sometimes infarction with hemorrhage and inflammation
• Late lesions:
  • Epidermal thinning
  • Dermal sclerosis
  • Thickening of vessel walls with intimal hyalinization
  • Occlusion of vessel lumina by intimal proliferation or fibrinoid material, sometimes with recanalization

Cases associated with this book:

Atrophie blanche
Author: Stephen Lyle, M.D., Ph.D.

Conference: DermatopathologyConsultations.com Teaching Collection