title: Development of six tumors in a sebaceus nevus of jadassohn: report of a case.
abstract: Nevus sebaceus of Jadassohn is a congenital cutaneous hamartoma comprised of multiple skin structures. It has the potential to develop into variety of neoplasms of various epidermal adnexal origins. While multiple tumors may occasionally arise, it is unusual for more than four tumors to arise simultaneously within a single sebaceus nevus. Here in, we report a case of a 70-year-old woman with six neoplastic proliferations including a syringocystadenoma papilliferum, pigmented trichoblastoma, tubular apocrine adenoma, sebaceoma, tumors of follicular infundibulum and superficial epithelioma with sebaceus differentiation arising in a long standing nevus sebaceus on the scalp. Our case is extraordinary because a single nevus sebaceus contained six neoplastic proliferations with differentiation toward the folliculosebaceous-apocrine unit.
authors.affiliation: Department of Pathology, Ankara Training and Research Hospital, Ankara, Turkey.
authors.forename: Serap
authors.initials: S
authors.lastname: Gozel
authors.affiliation: Department of Pathology, Ankara Training and Research Hospital, Ankara, Turkey.
authors.forename: Melahat
authors.initials: M
authors.lastname: Donmez
authors.affiliation: Department of Pathology, Ankara Training and Research Hospital, Ankara, Turkey.
authors.forename: Noyan Can
authors.initials: NC
authors.lastname: Akdur
authors.affiliation: Department of Family Medicine, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey. ; Department of Family Medicine, University of Antwerp, Antwerp, Belgium.
authors.forename: Hulya
authors.initials: H
authors.lastname: Yikilkan
keywords: Nevus sebaceous of Jadassohn; Pigmented trichoblastoma; Sebaceous differentiation; Syringocystadenoma papilliferum; Tubular apocrine adenoma