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KMID : 1037020130020010029
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Medical Lasers; Engineering, Basic Research, and Clinical Application
2013 Volume.2 No. 1 p.29 ~ p.32
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Treatment of Compound Melanocytic Nevus Using a Long-pulsed 755-nm Alexandrite Laser
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Kim Young-Koo
Cho Sung-Bin
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Abstract
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We herein report a 16-year-old Korean male patient with darkly pigmented mammillated compound melanocytic nevus effectively treated by a 755- nm alexandrite laser with a pulse duration of 3 msec. Pigment-specific lasers are known to be effective in the treatment of acquired and congenital melanocytic nevi as they mainly target the chromophores of melanin pigments in nevus cells. In the present report, we proposed the use of an integrated dynamic cooling device that effectively protected the epidermis and facilitated safer delivery of high pulse energy of sufficient intensity to destroy large nests of compound nevus cells. Furthermore, a 755-nm alexandrite laser with a pulse duration of 3 msec shortened procedure times compared to conventional resurfacing lasers by eliminating the risk of post-therapy oozing or bleeding with selective photothermolysis, in addition to targeting a larger spot size.
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KEYWORD
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Long-pulsed alexandrite laser, Compound melanocytic nevus, Asian skin
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