Rare manifestation of bilateral nasolabial cyst: case report

Introduction: Nasolabial cysts are rare non-odontogenic lesions accounting for approximately 0.7% of cysts diagnosed in the maxillofacial region. They often emerge as slow-growing and painless nasolabial bulging that can be associated, or not, with nasal obstruction and asymmetric nostril opening. In some cases, they can get infected and make the affected area painful. These lesions are often unilateral, although rare cases with bilateral manifestation were described in the literature. Surgery, with sublabial or endonasal cyst excision, is the treatment of choice. Report: A 47-year-old female patient with bilateral bulging in the nasal region, associated with nasal obstruction, was treated at an Otorhinolaryngology service. Physical examination has evidenced painless bulging with cystic consistency and mild nasolabial folds’ effacement. Computed tomography scan of the sinuses has confirmed the hypothesis of nasolabial cyst. The patient was subjected to surgery based on the sublabial approach in order to fully remove the cysts. Anatomopathological examination has confirmed the bilateral nasolabial cyst diagnosis. Conclusion: The current study presented a nasolabial cyst case with rare bilateral manifestation, which was successfully managed through sublabial enucleation and did not show complications or recurrence.