Dermatoscopy of Verrucous Pigmented Lesions is Essential for Choosing the Appropriate Treatment.

Dermatoscopy, as a noninvasive rapid method, which allows the viewing of melanin in the epidermis and papillary dermis, has an important role in diagnosis of the pigmented lesions localized on skin, mucous membrane, scalp and nails. The term of verrucous pigmented lesions includes a series of non-melanocytic and melanocytic, benign and malignant lesions. Among these, the most frequent is the seborrheic keratosis , a common epidermal tumor, affecting the sun exposed areas of adult. At the other end of the spectrum regarding the frequency is the seborrheic keratosis-like melanoma, whose underdiagnosis has a serious impact on the patient's life. In this work we present the clinical and dermoscopical aspects of three cases of verrucous pigmented lesions (two seborrheic keratoses and one seborrheic keratosis-like melanoma) that determined the diagnostic algorithm as well as the therapeutic approach. The above-presented cases underline the importance of dermatoscopy to determine the malignant potential of the pigmented lesions, the final appropriate treatment being possible after the histopathologic confirmation.