Abstract:
:Although Q-switched (QS) lasers are the mainstay of modern tattoo removal, paradoxical darkening of tattoo ink may occur. This darkening of tattoo ink is dependent on laser wavelength, pulse duration and fluence, with high-energy, nanosecond-pulsed lasers more prone to induce tattoo-ink darkening. Laser toning, consisting of multiple-passed QS neodymium:yttrium-aluminum-garnet (Nd:YAG), 1064-nm laser treatment with low fluence, short pulse duration (< 10 ns), and a repetition rate of 10 Hz has been successful in the treatment of melasma. A mistake commonly made during laser toning is to scorch scalp hair, eyebrows or eyelashes, but this phenomenon is reversible. A more problematic error is caused by treatment of eyeliner or eyebrow tattoos. We report a patient who experienced changes in unperceived, skin-coloured tattoos, turning them blue after QS Nd:YAG laser treatment of melasma.
journal_name
Clin Exp Dermatoljournal_title
Clinical and experimental dermatologyauthors
Chung WK,Yang JH,Lee DW,Chang SE,Lee MW,Choi JH,Moon KCdoi
10.1111/j.1365-2230.2009.03234.xsubject
Has Abstractpub_date
2009-12-01 00:00:00pages
e555-7issue
8eissn
0307-6938issn
1365-2230pii
CED3234journal_volume
34pub_type
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