Lichen nitidus is a chronic inflammatory disease of unknown cause characterized by 1–2 mm, discrete and uniform, shiny, flat-topped, pale flesh-colored or reddish-brown papules that may appear as hypopigmented against dark skin. Occasionally, minimal scaling is present or can be induced by rubbing the surface of the papules. The disease usually affects children and young adults and is painless and usually nonpruritic, although protracted itching may occur in some cases.
Lichen nitidus は通常、子供や若年者に発症し、性別や人種を問わず同等に影響します。皮膚上に幅 1〜2 mm 程度の小さく光沢のある平坦な隆起として現れます。これらの隆起は、腕、脚、腹部、胸部、または陰部に出現することが多いです。ほとんどの場合無症状であるため、治療は症状がある病変や美容的に問題がある病変に対してのみ行われます。 Lichen nitidus most commonly presents in children and young adults and does not favor one sex or race. Lichen nitidus presents as multiple, discrete, shiny, flat-topped, pale to skin-colored papules, 1 to 2 mm in diameter. These lesions commonly present on the limbs, abdomen, chest, and penile shaft. It is usually asymptomatic, so treatment is generally for symptomatic or cosmetically disturbing lesions.