Abstract

Jadassohn nevus is a congenital hamartoma that is characterized by natural evolution in three stages, with a risk of malignancies occurring in the last phase. This benign adnexal tumor often affects the face and scalp. Dermoscopy can provide a major help for detecting transforming tumors. We report the case of a senile sebaceous Nevus which has been diagnosed after the occurrence of Basal cell carcinoma in a 60 years old man. The originality of this observation remains in the rarity of the pseudo glandular basal cell carcinoma that, in the best of our knowledge, has never been reported in underlying nevus sebaceous.

Keywords

sebaceous nevus, dermoscopy, basal cell carcinoma, prophylactic surgery, imaging technique, total lesion excision, histopathological examination, basaloid cell proliferation, trichoblastoma, malignant tumors, veracious plaque, squamous cell carcinoma, sebaceous carcinoma, dermoscopic control