甲状舌管囊肿临床比较多见，绝大多数位于颈部，发生于舌下的则很少见，现将临床遇到的１例报告如下。患者男，４６岁。因舌下肿物入院，患者三个月前出现舌下肿物，无自觉症状，未治疗，肿物缓慢增大，现已影响舌运动及语言清晰度。临床检查：舌体上抬，舌下区隆起，粘膜色泽 Thyrogogue lingual cyst more common clinical, the vast majority in the neck, occurs in the tongue is very rare, now encountered in a clinical report as follows. Male patient, 46 years old. Because of sublingual tumor admission, patients with sublingual tumors three months ago, no symptoms, no treatment, the tumor slowly increased, has now affected the tongue movement and language clarity. Clinical examination: tongue elevation, sublingual area bulge, mucosal color