Dermatopathology
Osteonevus of Nanta: a case report in a combined melanocytic nevus☆,☆☆

https://doi.org/10.1016/j.abd.2019.04.017Get rights and content
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Abstract

Secondary osteoma cutis is a phenomenon that may occur in several conditions. When it occurs in a melanocytic nevus it is named osteonevus of Nanta, an event considered uncommon and characterized by the presence of bone formation adjacent or interposed with melanocytic cells. There are reports of its occurrence in various melanocytic lesions, being more frequently associated with intradermal nevus. We report a case of osteonevus of Nanta in combined nevus, possibly the first description of this association.

Keywords

Heterotopic
Nevus, blue
Nevus, intradermal
Nevus, pigmented
Ossification
Osteoma

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How to cite this article: Melo ED, Couto PA, Schettini AP, Rodrigues CA. Osteonevus of Nanta: a case report in a combined melanocytic nevus. An Bras Dermatol. 2020;95:348–51.

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Study conducted at the Fundação de Dermatologia Tropical e Venereologia Alfredo da Matta, Manaus, AM, Brazil.

© 2020 Sociedade Brasileira de Dermatologia. Published by Elsevier España, S.L.U.