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When CO2 and Er:YAG lasers are used in a manner such that there are equivalent immediate postoperative histologic results, equivalent healing and cosmetic improvement occurs. One can use CO2 laser with one pass to mimic a moderately aggressive Er:YAG laser treatment.

Treatment of pearly penile papules was performed both with a conventional continuous-wave (CW) and a newer generation high energy pulsed carbon dioxide laser. When compared to the short pulsed laser, the CW laser, using relatively low power densities, provided superior hemostasis and improved visualization of the operative field. Despite the increase in thermal injury, wound healing was not compromised. The results of this case report support the CO2 laser in CW mode as the infrared laser treatment of choice for exophytic lesions with increased vascularity.

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