Clinical evaluation of a two-incision fistula technique for the treatment of oral ranulas

Abstract

Oral ranulas are caused by extravasation of mucus from the sublingual glands, and the preferred treatment varies. We have developed a two-incision fistula operation for their treatment, and in this clinical study we have evaluated the efficacy and safety of this approach. Twelve patients with oral ranulas confirmed by fine needle aspiration cytology were enrolled and gave their consent to be treated by our new technique. The clinical outcomes and complications were evaluated during a period that ranged from 8-24 months. Nine ranulas became smaller and gradually disappeared, and there were no complications or injury to Wharton's duct. Three ranulas recurred, but disappeared after a second operation. The two-incision fistula operation can be effective and safe as an initial treatment for oral ranulas, and the method may become the preferred management for retention cysts.