Segmental Lichen Planus Pigmentosus Successfully Treated With Picosecond Neodymium-Doped: Yttrium-Aluminium-Garnet Laser and Trifarotene in a Korean Patient.

Lichen planus pigmentosus (LPP) is a rare variant of lichen planus that presents as hyperpigmented patches, most commonly in individuals with darker skin tones, and is difficult to treat effectively. We report a case of a 22-year-old Korean male with LPP who showed considerable improvement following combination therapy with trifarotene and a picosecond neodymium-doped yttrium-aluminium-garnet (Nd:YAG) laser. Considering the inherently variable clinical course of LPP and the challenges associated with its treatment, the combination of topical retinoids and picosecond Nd:YAG lasers appears to be a promising therapeutic approach.