Journal of Oral Science
Online ISSN : 1880-4926
Print ISSN : 1343-4934
ISSN-L : 1343-4934
Case Report
Multifocal diffuse oral melanoacanthoma: a case report
Luciana S. MarocchioDécio S. P. JúniorSuzana C. O. M. de SousaRebeca F. FabreRicardo Raitz
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JOURNAL FREE ACCESS

2009 Volume 51 Issue 3 Pages 463-466

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Abstract

Oral melanoacanthoma (OMA) is a rare benign lesion characterized by colonization of acanthotic epithelium by dendritic melanocytes. Although its pathogenenesis remains uncertain, its clinical behavior and spontaneous remission suggest a non-neoplastic nature. Clinically, it may present as a solitary or multifocal lesion; however these two variants exhibit different features. The clinical appearance of OMA is not pathognomonic and biopsy is mandatory. OMA requires no treatment or periodic observation. Here, we report a case of OMA with diffuse lesions also affecting the tongue in a 74-year-old black woman, whose diagnosis was based essentially on clinical and histological features. The immunohistochemical profile is also presented. (J Oral Sci 51, 463-466, 2009)

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© 2009 by Nihon University School of Dentistry
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