A Rare Case of Congenital Plunging Ranulas: Diagnosis With Intraoral and Extraoral Ultrasound and Magnetic Resonance Imaging

Abstract

Ranulas are cystic lesions located in the floor of the mouth. These are "pseudocysts" and are developed due to an obstruction in the sublingual gland. Congenital variants of plunging ranulas are very rare. Here, we report a case of an eight-year-old male child presenting with congenital swelling with an intraoral component as well as extension to the submandibular gland region. The swelling was painless and gradually growing in size.

Keywords: mucous retention cyst; plunging ranula; ranula; sublingual swelling; submandibular pseudocyst; submandibular swelling.