Recently, endoscopic removal of sialoliths has been introduced to avoid submandibular sialoadenectomy. Furthermore, sialendoscopes enable the removal of foreign bodies or granulation tissues as well as sialoliths. We report here the endoscopic removal of granulation tissue in the hilum of the submandibular gland after a sialolith was discharged spontaneously with pus from the mucosa of the oral floor.
A 10-year-old boy with swelling of the right submandibular gland was referred to our department for endoscopic removal of a sialolith of the submandibular gland. Since there was a massive discharge of pus from the mucosa of the oral floor, the patient underwent a computed tomography （CT） scan. Because CT did not show a sialolith, we suspected that swelling of the submandibular gland was caused by granulation tissue in the hilum. Therefore, the patient underwent endoscopic removal of the granulation tissue under general anesthesia. The granulation tissue was completely removed and the surgical time was 57 minutes. The postoperative course was uneventful.