Polymorphous Light Dermatosis: Or something else? Differential Diagnosis

Skin and subcutaneous (L00-L99).

  • Chronic actinic dermatitis (light sickness).
  • Erythema exsudativum multiforme (synonyms: erythema multiforme, cocard erythema, disc rose) – acute inflammation occurring in the upper corium (dermis), which leads to typical cocard-shaped lesions; a distinction is made between a minor and a major form.
  • Hereditary polymorphous light dermatosis of American Indians.
  • Light urticaria – wheal formation after exposure to light.
  • Lupus erythematosus (LE) – group of autoimmune diseases that, among other things, leads to skin symptoms.
  • Lymphocytic infiltration
  • Photoallergic reactions
  • Phototoxic reactions