title: Exogenous ochronosis - successful outcome after treatment with Q-switched Nd:YAG laser.
abstract: BACKGROUND
  Exogenous ochronosis (EO), a disfiguring cutaneous complication of topical hydroquinone use, is difficult to treat. There are few reports of successful outcomes following treatment with different modalities.
  
  
  OBJECTIVE
  We assessed the results of treatment of EO with the Q-switched Nd:YAG laser.
  
  
  METHODS
  Patients with histologically-confirmed EO were treated with the Q-switched Nd:YAG laser.
  
  
  CONCLUSIONS
  Q-switched Nd:YAG laser treatment appears to be effective in reducing the dyschromia of EO.
authors: The DRx Clinic , 302 Orchard Road #16-01, Tong Building , Singapore, 238862 Singapore.
authors: Siak-Khim Sk
authors: SK
authors: Tan
mesh_terms: D000328:Adult; D000368:Aged; D044466:Asian People; D005148:Facial Dermatoses / Q000139:chemically induced / Q000532:radiotherapy*; D005260:Female; D006801:Humans; D006873:Hydroquinones / Q000009:adverse effects; D017495:Hyperpigmentation / Q000139:chemically induced / Q000532:radiotherapy*; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D028022:Low-Level Light Therapy; D008875:Middle Aged; D009794:Ochronosis / Q000139:chemically induced / Q000532:radiotherapy*
chemical_list: D006873:Hydroquinones; C031927:hydroquinone