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Intraoral melanoacanthoma.

V M Frey, W C Lambert, R D Seldin

Journal of Surgical Oncology

|October 1, 1984

Summary

This summary is machine-generated.

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A rare benign oral lesion, melanoacanthoma, presented as a pigmented macule on the buccal mucosa of a 39-year-old woman. Histology confirmed numerous melanocytes without atypia, supporting the diagnosis.

Area of Science:

Oral pathology
Dermatology
Histopathology

Background:

Melanoacanthoma is a rare, benign pigmented lesion of the oral mucosa.
It typically presents as a rapidly growing, asymptomatic macule or plaque.

Observation:

A 39-year-old African American woman presented with a newly discovered pigmented lesion on her right buccal mucosa.
The lesion measured 2.0 x 1.8 cm, was uniformly pigmented, and appeared macular to slightly plaque-like with symmetrical folding and indentation.

Findings:

Histopathological examination revealed a hyperplastic mucous membrane.
Numerous dendritic melanocytes were observed at all levels of the epithelium.
No cellular atypia, pleomorphism, or stromal fibrosis was identified.

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Implications:

The findings support the diagnosis of oral melanoacanthoma.
This benign condition requires accurate histopathological differentiation from malignant lesions.
Further research into the etiology and specific triggers of melanoacanthoma may be warranted.