Eccrine Poroma Arising within Nevus Sebaceous
Nevus sebaceous is a congenital, benign hamartomatous lesion, characterized by a yellowish to skin-colored, hairless, verrucous plaque on click here the head and neck region.In later life, a secondary tumor, either benign or malignant, can develop within nevus sebaceous.Eccrine poroma developing on nevus sebaceous is extremely rare.There are few ca