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Open Access Publications from the University of California

An unusual case of pigmented plaques on the sole

Creative Commons 'BY-NC-ND' version 4.0 license

Palmoplantar lichen planus is a rare variant of lichen planus with diverse clinical presentations, making the diagnosis challenging. We present an unusual case of a young patient who presented with asymptomatic non-pruritic flat-topped pigmented plaques on his left sole and no other lesions elsewhere. Histology was consistent with lichen planus. We emphasize a high index of suspicion owing to varied clinical presentation and the necessity of a biopsy for diagnosis

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