Proliferative verrucous leukoplakia (PVL) is a distinct clinical form of oral leukoplakia defined by its progressive clinical course, changing clinical and histopathologic features, and potential to develop into cancer. PVL behaves in a more aggressive and relentless manner than the more innocuous white oral lesions that it can resemble clinically. We present three cases of PVL that progressed to carcinoma and discuss the histopathologic findings that may either hinder or assist in the diagnosis.
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Morton et al. (2007) studied this question.
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