A Rare Case of a Large Plunging Ranula with Cervical Extension: Imaging, Diagnosis, and Management

Keywords: Ranula, Sublingual salivary gland, Neck masses.<br>Abstract. A plunging ranula is a mucous extravasation cyst appearing as a swelling in the submental and<br>submandibular regions. We describe a rare case of massive deep diving cervical ranula involving multiple tissue<br>spaces and extending to the upper mediastinum. The unusual course of events following surgical excision of the<br>submandibular gland is presented. A Computerized Tomography (CT) scan revealed the true extent of the lesion<br>and its relationship to the surrounding structures. Other imaging techniques and diagnostic tests are discussed and<br>relevant literature is reviewed.