[Osteoma of lingual base: a case report].

Osteoma of lingual base is a rare disease which consists of well-developed bone surrounded by epithelial tissue on the surface of tongue. This article reported a case of osteoma of lingual base in the oral-cavity. The patient was admitted to hospital on March 2019 and developed foreign body sensation in pharynx in the last 2 weeks, without pharyngeal pain and fever, cough and sputum, breathing and swallowing difficulties. No obvious abnormality was found in chest radiograph, electrocardiogram and biochemical test of hematuria. There was a nodular mass in the size of 0.7 cm×0.8 cm×0.4 cm on the left side of the base of the tongue, which was higher than the surface of the base of the tongue. The surface of the mass was smooth, gray in color, with clear boundaries of touch, no tenderness, and hard texture. The clinical diagnosis was a mass at the base of the tongue.