Dermatoscopic Findings of Seborrheic Keratosis in Melanoma

Abstract

Cutaneous melanoma may in some instances be confused with seborrheic keratosis, which is a very common neoplasia, more often mis taken for actinic keratosis and verruca vulgaris. Melanoma may clinically re semble seborrheic keratosis and should be considered as its possible clinical simulator. We report a case of melanoma with dermatoscopic characteristics of seborrheic keratosis and emphasize the importance of the dermatoscopy algorithm in differentiating between a melanocytic and a non-melanocytic lesion, of the excisional biopsy for the establishment of the diagnosis of cu taneous tumors, and of the histopathologic examination in all surgically re moved samples.