Introduction: Post-inflammatory hyperpigmentation (PIH) that results from acne in patients with skin of color may be more distressing than the itself, and likely impacts higher phototypes greatly those lower phototypes. Topical retinoids, a mainstay treatment, can also reduce hyperpigmentation. For example, significant PIH improvements cream formulation retinoid tazarotene (0.1%) were observed ...

A 75-year-old woman with a history of hydroxychloroquinetreated cutaneous lupus erythematosus presented with a bilateral sharply demarcated macular hyperpigmentation on both forearms (Fig. 1) and a partial melanonychia of the right thumb nail. This pigmentation disorder developed gradually over a 6-month period. No retinal pigmentation and no systemic disorder were revealed. Dermoscopy of the n...