What Is Lichen Planus Pigmentosus Inversus?

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Lichen planus pigmentosus inversus, short for LPPI, is a pigmentary cutaneous manifestation appearing in skin-fold areas. It is an extremely rare variant of lichen planus. Symptoms LPPI may present as brown or smooth macules, papules or patches in any skin area. It has a chronic course in which its size gradually extends and its color deepens progressively. Lesions are usually asymptomatic and seldom related to pruritus or pain. However, exact causes and effective treatments for LPPI still remain unknown. If you want to get more information and advice, please call your doctor for help. Keywords: lichen planus pigmentosus inversus; LPPI; lichen planus pigmentosus inversus symptoms.