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On the basis of a study of 54 specimens each of large-cell acanthoma, solar lentigo, reticulated seborrheic keratosis, and lichen planus-like keratosis, it is concluded that clinically, histopathologically, and biologically, large-cell acanthoma is a variant of solar lentigo, and solar lentigo (including the large-cell variant) is a stage in the evolution of reticulated seborrheic keratosis and of lichen planus-like keratosis.
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Roewert et al. (1992) studied this question.
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