LICHEN PLANUS PIGMENTOSUS INVERSUS IN A 67-YEAR-OLD WOMAN. CASE REPORT
Abstract
LICHEN PLANUS PIGMENTOSUS INVERSUS IN A 67-YEAR-OLD WOMAN. CASE REPORT (Abstract): Lichen planus pigmentosus inversus (LPPI) is a chronic inflammatory disorder, presenting with brown patches and macules over flexural areas. Due to its histological appearance, LPPI is believed to be a pauci-inflammatory variant of classical lichen planus. Although it is a rare disorder, its epidemiology is variable, case series being reported all over the world. Herein, we report the case of a 67-year-old woman with asymptomatic, brown to purple, macules and patches, distributed over multiple intertriginous areas. Even though current evidence suggests that LPPI is generally resistant to treatment, our patient showed improvement following topical treatment with high-potency corticosteroids. LPPI may be an under-reported disease due to misdiagnosis and it should be considered in the differential diagnosis of pigmentation over flexural areas.
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