Clinical Features:

• Familial photodermatosis of unknown etiology, most often affecting Native Americans
• Most commonly presents on the face with coarsening of facial features
• There is often an associated cheilitis, called follicular cheilitis or actinic prurigo cheilitis.

Histologic Features:

• Acute lesions (indistinguishable from polymorphous light eruption):
  • Spongiosis
  • Superficial dermal perivascular lymphocytic infiltrate
  • Dermal edema
• Chronic lesions:
  • Hyperkeratosis
  • Acanthosis
  • Signs of photoadaptation

Cases associated with this book:

Actinic prurigo
Author: Stephen Lyle, M.D., Ph.D.

Conference: DermatopathologyConsultations.com Teaching Collection