A 54-year-old woman was seen at our department with a painless swelling on the right submandibular region that had lasted for 4 months. Physical examination revealed a hard elongated mass along the right Wharton's duct and a reduced salivary flow. An occlusal radiograph showed a radiopaque, cylindrical, and elongated sialolith inside Wharton's duct. It was carefully dissected with the patient under local anesthesia and a yellow 2.5-cm long specimen was obtained (Fig 1). The submandibular salivary gland was preserved. This procedure was approved by Institutional Review Boards, and the subject gave informed consent to the work. Microscopic analysis confirmed the initial diagnosis. The patient was reassessed 15 days after surgery for the evaluation. At that time, the right submandibular gland was found to be normal and a clear salivary flow could be observed. One year after the surgical procedure, the patient shows no signs or symptoms of xerostomia, and salivary flow is normal#
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