Recently, we encounted a case of lymphoepithelial cyst with calcification which developed on the floor of the oral cavity. Here, we report the clinical course of this patient. On February 17, 1995, a 24-year-old woman presented at our department because of a mass on the right side of the floor of the oral cavity. Examination revealed an elastic hard mass of 5×5×3 mm in size, which had well-defined margins and a smooth surface mucosa. The mass, which caused neither spontaneous pain nor tenderness, was regarded as a movable tumor because of the absence of adhesion to the surrounding tissues. We performed a tumorectomy under local anesthesia. The pathological diagnosis was a lymphoepithelial cyst with calcification. Five months have passed since the operation. There are no signs of recurrence, and the patient's postoperative course is satisfactory.
