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A case of multiple lichen planus-like keratoses with junctional melanocytic proliferation is reported. An 83-year-old male patient complained of multiple purple red flat papules and plaques on the extremities for 1 year with no medication history. Histopathology examination showed epidermal hyperkeratosis, focal parakeratosis, acanthosis, necrosis of keratinocytes, focal liquefaction of basal cells, bandlike infiltration of lymphocytes, eosinophils and few plasma cells in superficial dermis. Solar lentigo-like pathological changes were observed at the edge of the lesions. Immunohistochemical study revealed an obvious increase in the count of large, star-shaped, Mela-A-positive melanocytes in the lichenoid infiltrates.

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