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Book

Oral Melanoacanthoma

Mercy Jimenez  1 , Melina Brizuela  2
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
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Free Books & Documents
Book

Oral Melanoacanthoma

Mercy Jimenez et al.
Free Books & Documents

Excerpt

Oral melanoacanthoma is a rare, benign macular brown-black lesion, which is usually asymptomatic and distinguished by the sudden appearance and rapid growth. It is found to be secondary to tissue trauma and is self-limiting in nature. In the literature, up to 75% of reported cases are labeled as reactive. Histologically, it presents with acanthosis of the superficial epithelium and proliferation of dendritic melanocytes. The most common location of oral melanoacanthomas is the buccal mucosa, but they can also be seen in labial mucosa, palate, gingiva, alveolar mucosa, and oropharynx. There are 2 recognized phenotypes, the multifocal and the singular, the most common of which is the latter.

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Conflict of interest statement

Disclosure: Mercy Jimenez declares no relevant financial relationships with ineligible companies.

Disclosure: Melina Brizuela declares no relevant financial relationships with ineligible companies.

References

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