title: Fractional 532-nm Q-switched Nd:YAG laser: One of the safest novel treatment modality to treat café-au-lait macules.
abstract: Café-au-lait macules (CALMs) are benign epidermal basilar hyperpigmentations that can be found in an isolated form or in association with neurocutaneous syndromes. Frequency-doubled Q-switched neodymium-doped yttrium aluminum garnet laser (532-nm QSNYL) does not penetrate deeply into the skin and is therefore suitable for epidermal pigmented lesion. Fractional photothermolysis (FP) targets only very small areas of the skin, without injuring adjacent areas of healthy, normal skin. Herein, we report a case of CALMs successfully treated with fractional 532-nm QSNYL. By applying FP to 532-nm QSNYL, we could treat CALMs safely with less downtime as compared to conventional laser treatments and expect more energy delivery for each microscopic hole, thereby allowing higher response rate.
authors.affiliation: a Department of Dermatology , Asan Medical Center, University of Ulsan College of Medicine , Seoul , Korea.
authors.forename: Kwang Hee
authors.initials: KH
authors.lastname: Won
authors.affiliation: a Department of Dermatology , Asan Medical Center, University of Ulsan College of Medicine , Seoul , Korea.
authors.forename: Ye Jin
authors.initials: YJ
authors.lastname: Lee
authors.affiliation: a Department of Dermatology , Asan Medical Center, University of Ulsan College of Medicine , Seoul , Korea.
authors.forename: Do Young
authors.initials: do Y
authors.lastname: Rhee
authors.affiliation: a Department of Dermatology , Asan Medical Center, University of Ulsan College of Medicine , Seoul , Korea.
authors.forename: Sung Eun
authors.initials: SE
authors.lastname: Chang
mesh_terms: D002610:Cheek; D002648:Child; D006801:Humans; D017495:Hyperpigmentation / Q000532:radiotherapy*; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D028022:Low-Level Light Therapy / Q000379:methods*; D008297:Male; D016896:Treatment Outcome
keywords: CALM; fractional photothermolysis; frequency-doubled Q-switched neodymium-doped yttrium aluminum garnet laser