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Case Reports
. 2012 Sep;16(3):441-3.
doi: 10.4103/0973-029X.102514.

Oral melanoacanthoma: A rare case of diffuse oral pigmentation

Anish Ashok Gupta  1 , Purshotam Nainani, Bipin Upadhyay, Pratibha Kavle
Affiliations
Case Reports

Oral melanoacanthoma: A rare case of diffuse oral pigmentation

Anish Ashok Gupta et al. J Oral Maxillofac Pathol. 2012 Sep.

Abstract

The clinical presentation of diffuse pigmentation can be alarming to the patient as well as the clinician. A histopathologic examination of a pigmented lesion is necessary in most of the cases in the oral cavity. Oral melanoacanthoma is a very rare diffuse pigmentation with no specific treatment required. It shows increased number of dendritic melanocytes in an acanthotic epithelium. We present a rare case of diffuse pigmentation in the oral cavity whose diagnosis was done on the basis of clinical presentation and histopathology. Also immunohistochemistry was done.

Keywords: Diffuse pigmentation; melanocytes; oral melanoacanthoma.

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Conflict of interest statement

Conflict of Interest: None declared.

Figures

Figure 1
Figure 1
Diffuse pigmentation involving hard palate, soft palate, bucal mucosa and retromolar areas
Figure 2
Figure 2
Marked acanthosis (Hematoxylin and Eosin. 40×)
Figure 3
Figure 3
S-100 protein positivity in suprabasal layers indicating dendritic melanocytes in acanthotic epithelium
See this image and copyright information in PMC

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