Case Report of Conjunctival Melanoacanthoma.

PURPOSE: The purpose of this study was to describe a case of conjunctival melanoacanthoma, an exceedingly rare condition that has yet to be fully described in the literature.

METHODS

Melanoacanthomas are most commonly seen on the skin or oral mucosa and are believed to result from local irritation or trauma. A 34-year-old Hispanic man presented with a painless, solitary, pigmented conjunctival lesion, in addition to bilateral pterygia suggesting chronic solar damage. The lesion was excised and sent for analysis.

RESULTS

Histopathologic analysis of tissue samples demonstrated melanocyte proliferation and epithelial dysplasia, yielding a final pathologic diagnosis of conjunctival melanoacanthoma with dysplastic and acantholytic-type features. The patient is being closely followed and has not had recurrence of the lesion.

CONCLUSIONS

Only 1 prior case of conjunctival melanoacanthoma has been documented. As such, there is no standard of care regarding appropriate management.