Exogenous Ochronosis in Facial Lichen Planus Pigmentosus
Journal Title: Journal of Dermatology Research - Year 2021, Vol 2, Issue 1
Abstract
Lichen planus pigmentosus is a chronic inflammatory pigmentary dermatosis considered a rare variant of the cutaneous lichen planus. It is characterized by acquired dark brown to gray macular pigmentation involving sun-exposed areas commonly found in dark-skinned patients. Exogenous ochronosis is an acquired cause of blue-gray to black pigmentation involving the skin and mucous tissues. We report a case of exogenous ochronosis occurring in a 45-year-old patient treated for lichen planus pigmentosus. She was treated with Kligman formula containing hydroquinone. The patient presented to our Department for progressive worsening of the malar pigmentation. Dermoscopy revealed gray to black rounded and homogeneous areas with arciform structures obliterating the follicular openings and telangiectasic vessels making us suspecting exogenous ochronosis confirmed by histology.
Authors and Affiliations
Selma El Kadiri*, Hanane Bay Bay, Imane Kacimi, Zakia Douhi, Sara Elloudi, Fatima-Zahra Mernissi, Layla Tahiri, Nawal Hammas, Leila Chbani, Hinde El Fatemi
Keywords
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- EP ID EP699063
- DOI http://dx.doi.org/10.46889/JDR.2021.2106
- Views 77
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