Seborrheic keratosis are one of the most common benign epidermal tumors encountered in clinical practice. Malignant transformation is exceptional. It may occur by the involvement of human papilloma virus. We report two cases of seborrheic keratosis in respectively 58 and 60-years-old women, which, on biopsy, revealed the presence of Bowen's disease for the former and Squamous cell carcinoma for the later.
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