title: Laser ignition of traumatically embedded firework debris.
abstract: OBJECTIVE
  The Q-switched ruby laser (QSRL) has a good track record for traumatic tattoo removal. An unusual case of QSRL-treatment of a traumatic tattoo composed of firework debris is presented.
  A young man's traumatic tattoo, composed of firework debris, underwent QSRL ablation at 4-7 J/cm2 (pulse width 5 mm; duration 20 ns).
  
  
  RESULTS
  Each test pulse produced visible sparks and focal projectile ejection of skin with pox-like scar formation.
  
  
  CONCLUSIONS
  Caution is advised when using the QSRL for the treatment of traumatic tattoos composed of potentially combustible debris.
authors.affiliation: Dermatology Laser Center, Harvard University, Massachusetts General Hospital, Wellman Laboratories of Photomedicine, Boston 02114, USA. taylorc@mgh.harvard.edu
authors.forename: C R
authors.initials: CR
authors.lastname: Taylor
mesh_terms: D000328:Adult; D001753:Blast Injuries / Q000150:complications / Q000601:surgery*; D002921:Cicatrix; D003646:Debridement; D062109:Dermatologic Surgical Procedures; D004954:Esthetics; D005151:Facial Injuries / Q000209:etiology / Q000601:surgery*; D005390:Fires; D005500:Follow-Up Studies; D006801:Humans; D053685:Laser Therapy / Q000379:methods*; D008297:Male; D012867:Skin / Q000293:injuries; D013653:Tattooing