Oral melanoacanthoma: A new entity in 2022 WHO

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Case Report

Author Details : Garima Rawat*, Hema Malini Aiyer

Volume : 10, Issue : 2, Year : 2024

Article Page : 141-144

https://doi.org/10.18231/j.jooo.2024.026

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Abstract

Aim: To highlight the occurrence of Melanoacanthoma in oral cavity.
Background: Melanoacanthoma of the oral cavity is rare benign reactive pigmented lesion. It has been recently considered as a distinct entity in the World Health Organization (WHO) classification. Oral melanoacanthomas are reactive and not related to seborrheic keratosis unlike their cutaneous counterparts which are variant of pigmented seborrheic neoplastic in nature. These lesions are characterized by hyperplasia of dendritic melanocytes dispersed throughout an acanthotic epithelium with buccal mucosa being the most common location.
Case Description: An 81-year-old female presented to us with complaint of blackish patch on hard palate. The patient underwent biopsy and the histopathological diagnosis of Melanoacanthoma was given.
Conclusion: To the best of our knowledge this is first such case of Melanoacanthoma on the hard palate in Indian subcontinent.
Significance: Awareness about these lesions is important for apt diagnosis and preventing under diagnosis.
 

Keywords: Melanoacanthoma, Palate, Melanocytes.

How to cite : Rawat G, Aiyer H M, Oral melanoacanthoma: A new entity in 2022 WHO. J Oral Med Oral Surg Oral Pathol Oral Radiol 2024;10(2):141-144

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