Abstract
In general, mucoceles located in the floor of the mouth orsubmandibular region arise from a sublingualgland. Mucoceles originating from a submandibular gland are extremely rare. We report a case of mucocelearising from the submandibular gland.
A 23-year-old man with a painless swelling in the left submandibular region was referred to our department.Extraoral examination revealed a fluctuant mass in this region. MRI showed a well-circumscribed lesion extendingfrom the submandibular gland to the base of the skull via the parapharyngeal space. The lesion emitted a high signalintensity on T2-weighted images.
Surgical extirpation was carried out from the left submandibular triangle, and both the cyst and the submandibulargland were extirpated simultaneously under general anesthesia.
Histopathological examination showed that the wall of the cyst had no epithelial lining, consistent with the diagnosisof an extravasation mucous cyst. There has been no evidence of recurrence as of 15 months after the operation.
