Abstract
The carbon dioxide (CO2) laser has an emission wavelength of 10,600nm, which is absorbed by biologic tissue regardless of pigmentation or vascularity because its target of interaction water. The CO, laser can be used either incise or vaporise tissue. Currently, the CO2 laser is most frequently used in the defocused mode to vaporize tissue. The CO2 laser is used successfully and excellent cosmetic results in the treatment of syringomas and xanthelasma. It is also quite useful in the treatment of pyogenic granulomas. The CO2 laser is quite effective in the treatment of other tumors, including seborrhic keratosis, cutaneous neurofibromas, mucous cysts, and venouus lakes. In the treatment of lower labial melanosis, the CO2 laser seems to provide a slightly less treatment response than Q-switched ruby laser.
