A case of an apocrine hidrocystoma treated by sublabial approach.

Apocrine hidrocystomas are uncommon cystic proliferations of the apocrine secretory glands. Maxilla is an unexpected involvement site for these tumors. Our study represents the first case of an apocrine hidrocystoma of the maxilla excised by an intraoral (sublabial) approach, being the first to define the radiologic findings of apocrine hidrocystoma on this region. This case is an extremely rare type in terms of the unusual symptomatology, location and size of the tumor. In this article, clinical presentation, surgical findings, histopathological features and treatment of this rare lesion were discussed.