Nasolabial cyst: presentation of a case with a review of the literature.

This report presents the clinical and histologic features and treatment of a classic nasolabial (nasoalveolar) cyst. Review of the literature confirms the fact that this lesion is a benign developmental cyst that may arise from epithelium of the nasolacrimal duct. The lesion is usually unilateral, but may be bilateral, is located beneath the ala of the nose, and occurs more frequently in females. Histologically, it is most frequently lined by a pseudostratified columnar epithelium, although both stratified squamous and cuboidal epithelium and goblet cells may be found. The cyst responds well to conservative enucleation.