Parotid duct sialocele following dental procedure: An uncommon cause of right oro-buccal swelling; with review of literature

Abstract

There are various types of masses seen in the parotid region; however, parotid duct sialocele is a cystic mass seen arising at the expense of the parotid duct following a facial trauma or post-surgery. It may occur secondary to a stricture formed at the end of the duct or due to a complete laceration of the salivary gland. In our case, a 36-year-old female patient came to the outpatient department with a fullness of mouth in the right cheek, was evaluated clinically by the surgeon, and was sent to the radiology department for ultrasonography. Ultrasonography and a computed tomography (CT) scan were performed, and a diagnosis of parotid duct sialocele secondary to stenosis in the parotid duct was made. The patient underwent surgery, and the mass was removed. Parotid duct sialocele is a salivary cavity arising at the expense of the parotid duct. Facial trauma is the most common cause of this rare condition. If left untreated, a sialocele may develop into a significantly large facial swelling. Fistula formation may occur, often draining extraorally. We report a case of parotid duct sialocele that was assessed by sialography and ultrasonography and managed by the placement of an intraductal cannula for 15 days until the duct was found patent. We also discuss various treatment options for this condition in this case report.