[Basal cell carcinoma arising in a seborrheic keratosis: a case report]. / Carcinome basocellulaire developpe sur une kératose séborrhéique: á propos d'une observation.

Seborrheic keratosis are one of the most common benign epidermic tumors in clinical practice. Malignant transformation is exceptional and occurs by the involvement of human papilloma virus. We report a case of seborrheic keratosis of the armpit in a 55 year-old woman whose biopsy revealed the presence of a basal cell carcinoma.