Case Rep Dermatol 2016;8:80-84. (DOI:10.1159/000445537). Eccrine Poroma Arising within Nevus Sebaceous. Girdwichai N. · Chanprapaph K. · Vachiramon V. Division of Dermatology, Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. Abstract: Nevus sebaceous is a congenital, benign hamartomatous lesion, characterized by a yellowish to skin-colored, hairless, verrucous plaque on the headSigueSigue leyendo «Eccrine Poroma Arising within Nevus Sebaceous.»