患者男,39岁。10余年前偶然发现舌根部中央一无痛性肿物,起初不易触及,近两年肿物缓慢增大至鸽蛋大小,影响发音及吞咽。专科检查:言语障碍,舌根部前缘正中可触及肿物前界,质地中等、偏硬,圆形,直径约5cm,基底宽,不能移动,无波动及压痛,表面黏膜正常。CT平扫:示自舌根部至舌骨水 Male patient, 39 years old. More than 10 years ago, a painless mass in the middle of the tongue root was accidentally discovered. At first, it was hard to reach. At the beginning of the past two years, the mass slowly increased to the size of a pigeon egg, affecting pronunciation and swallowing. Specialist examination: speech impairment, the middle of the leading edge of the tongue root can touch the front of the mass, medium texture, partial hard, round, diameter of about 5cm, the base width, can not move without fluctuations and tenderness, the surface mucosa normal. CT scan: shown from the tongue to the hyoid bone water