Granular cell ameloblastoma of the anterior mandible.

To the Editor: Mucocele is a common benign lesion that mainly occurs in the minor salivary gland. It mainly occurs in the lower lip and more frequently occurs in women than in men.1,2 In many cases, it is clinically associated with trauma and appears to have a single or multiple, round, fluctuant nodules. It is asymptomatic in most cases.1,2 We experienced a rare case of mucocele in the buccal vestibule. A 20-year-old male patient without previous trauma or contributory medical history visited the authors’ hospital because of a mass that has been gradually growing in the left cheek for approximately 1 year. In a physical examination, soft circular submucosal mass with a size of 2 2 cm, which was not fixed to the nearby tissues involving the left buccal vestibule, was detected. No cervical lymphadenopathy was observed, and no particular finding was shown in hematologic test. Computed tomographic scan showed a 2 1.5-cm cystic mass lateral to the body of the left mandible, the inner portion of which was not contrast enhanced, but slight rim enhancement was found (Fig. 1A). The left oral mucosa was incised under systemic anesthesia, and submucosal dissection was then conducted to expose the mass with definite margin (Fig. 1B). Then, the mass was completely removed while minimizing the injuries of the nearby tissues. Histopathologic findings showed the cystic lesion lined by columnar epithelium. The patient underwent a 10-month follow-up study after the surgery and showed no complication such as hematoma, seroma, and recurrence.