2019 Volume 65 Issue 5 Pages 328-332
Nasoalveolar cysts account for 2.5% of all non-odontogenic cysts and are often found in adults. We describe our experience with a nasoalveolar cyst in a young patient, a 7-year-old girl, who had consulted her local dentist after noticing swelling in the right nasal alar region approximately 2 months before consulting our department. After no lesion had been initially detected on panoramic radiography, the girl visited our department and requested in-depth examination and treatment. Computed tomography (CT) revealed a slight dish-shaped depression in the alveolar bone in contact with a lesion. T2-weighted magnetic resonance imaging showed a shadow with distinct margins and interior uniform high signal intensity, measuring approximately 18 × 14 × 12 mm and extending from the labio-alveolar region identified on computed tomography to the lower region of the right piriform aperture. Cystectomy was performed with the patient under general anesthesia based on a clinical diagnosis of a nasoalveolar cyst. The fluid of the cyst was liquid gray to pale yellow and slightly pus-like. Histopathological examination revealed a cyst enveloped in what appeared to be columnar epithelium or stratified squamous epithelium, and the histopathological diagnosis was a nasoalveolar cyst.
