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Sebaceous Nevus

  • Iria Neri
Chapter

Abstract

Sebaceous nevus is a congenital hamartoma typically occurring on the scalp or face. It usually presents at birth as a smooth, flesh-colored or yellowish area that later develops a velvety and verrucous surface at puberty as a consequence of hormonal stimulation. In 10-20% of cases a superimposed benign or malignant lesion can develop. Dermatoscopy may be useful for the differential diagnosis with other lesions and for the identification of secondary arising tumors. In early stages, it displays bright yellow dots, while examination of a velvety plaque shows round to oval yellowish/orange structures of different size, sometimes gathered in clusters.

Keywords

Sebaceous nevus Dermatoscopy Congenital hamartoma Diagnosis 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Dermatology, Department of Specialized, Experimental and Diagnostic MedicineUniversity of BolognaBolognaItaly

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