Otorhinolaryngology CT examination: If the tongue is pressed with tongue depressor or indirect laryngoscopy, hypertrophic lymphoid tissue can be seen at the root of the tongue, which is granular and covered with the root of the tongue, symmetrical on both sides or on one side. In severe cases, the lymphatic tissue is covered with the valley of the epiglottis and can also extend to the side of the pharynx to connect with the tonsils. Due to the infection of lymphoid follicles in the lingual tonsils, small yellowish-white submucosal abscesses can be seen.