Lichenoid dermatitis--treatment with pulsed dye laser: a case study

Lasers Surg Med. 2002;31(1):23-6. doi: 10.1002/lsm.10069.


Background and objectives: Both the diagnosis and the treatment of lichenoid dermatosis are often difficult and can be time-consuming. There are now more and more publications about the use of laser systems--especially the flashlamp-pumped pulsed dye laser--in the treatment of inflammatory dermatoses, although the laser's exact mechanism of action in these cases is not yet clear.

Study design/patients and methods: We report on a female patient with lichenoid dermatitis that was presumably drug-induced (roxatidine, H(2) receptor antagonists). After a 10-month treatment with local corticosteroids, without significant clearance the drug was discontinued and the pulsed dye laser was used (wavelength 585 nm, pulse duration 450 microseconds).

Results: Six laser treatments resulted in complete clearance of the lesions. No recurrence occurred during the follow-up period of 54 months. Scars were not observed. A post-operative biopsy showed no evidence of lichenoid dermatitis.

Conclusions: The pulsed dye laser seems to accelerate the clearance of presumably drug induced corticosteroid-resistant lichenoid dermatoses. No permanent pigmental changes or scarring were observed.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Dermatitis / complications
  • Dermatitis / pathology
  • Dermatitis / therapy*
  • Exanthema / chemically induced
  • Exanthema / complications
  • Exanthema / pathology
  • Exanthema / therapy
  • Female
  • Histamine H2 Antagonists / adverse effects
  • Humans
  • Lichenoid Eruptions / chemically induced
  • Lichenoid Eruptions / complications
  • Lichenoid Eruptions / pathology
  • Lichenoid Eruptions / therapy*
  • Lithotripsy, Laser* / adverse effects


  • Histamine H2 Antagonists