Abstract
Plunging ranula is a rare mucocele that extends to the submandibular region. A 15 year-old male presented with a plunging ranula originating from the sublingual gland. The ranula was surgically extirpated together with the sublingual glandular tissues through a submandibular skin incision. There has been no recurrence of the ranula 15 months after surgery. The pathogenesis, diagnosis, and treatment of the plunging ranula are discussed.
