Abstract
Nasolabial cyst is a non-odontogenic developmental soft tissue cyst occurring in the periphery of the lip and nose, and is considered synonymous with nasal alveolar cyst according to the second edition of Histological Typing of Odontogenic Tumours by the WHO （1992）. Various theories have been proposed as to the etiology of this disease, including the retention cyst theory, the fissural cyst theory, and the embryonic nasolacrimal duct epithelial remnant theory, but none have been formulated. In the present study, we report a case of nasolabial cyst in the nasal vestibule of a patient who underwent a series of surgical procedures for unilateral complete cleft lip and alveolar, including labioplasty, secondary lip and nasal correction, and secondary bone grafting in the alveolar cleft.
