Warts as a common occurrence on nevus sebaceous: A case series depicting locus minoris resistentiae

Abstract

Locus minoris resistentiae (LMR) is a special site that offers less resistance to the onset of disease than the rest of the body. Areas of cutaneous mosaicism may act as congenital LMR sites. Viral infections such as verruca are a rare occurrence on these sites. Nevus sebaceous is a benign hamartoma with epidermal, follicular, and apocrine mosaicism in the stem cells that expand in the lines of Blaschko, which may act as a site of LMR. Herein, we present a case series of nevus sebaceous to document the occurrence of verrucae and the possibility of LMR at these sites. Key words: Wart, Locus minoris resistentiae, Nevus sebaceous