Differential Diagnosis

  • Lichenoid drug eruption
  • Lichenoid “id” reaction secondary to contact dermatitis
  • Lichenoid graft-vs-host disease
  • Lupus erythematosus
  • Erythema dyschromicum perstans
  • Pityriasis rosea
  • Psoriasis
  • Secondary syphilis
  • Lichen nitidus
  • Lichen striatus
  • Keratosis lichenoides chronica
  • Lichen sclerosus 
  • Lichen simplex chronicus 
  • Paraneoplastic pemphigus
  • Lichenoid keratosis

  • Frictional keratosis
  • Lichenoid reactions
  • Leukoplakia
  • Lupus erythematosus
  • Pemphigus
  • Mucus membrane pemphigoid
  • Erythematous candidiasis
  • Chronic ulcerative stomatitis

  • Psoriasis
  • Onychomycosis
  • Nail-manifested alopecia areata