Abstract
In cases of nevus spilus, in which the recurrence rate is high following treatment with long pulses of 2msec. alone, the recurrence rate was minimized by additional treatment using short pulses. The high effectiveness of this treatment method has been proven, particularly in cases of late nevus spilus or so-called Becker's nevus. This additional treatment permits cells with the ability to produce melanin relatively deep in the skin to be destroyed, resulting in further improvements in treatment effectiveness. Furthermore, treatment effectiveness was improved by additional laser treatment using short pulses at 10J/cm2 within 3 weeks after the first treatment. However, particularly in cases of congenital nevus spilus of youg patients under 20 years of age, favorable results cannot be obtained and the recurrence rate is still high. We must strive to overcome this problem.
