Objective: To study the behavior, diagnosis and treatment of the thyroglossal cyst in radix linguae.

目的：探讨发生于舌根的甲状腺舌管囊肿的临床表现、诊断和治疗方法。

Results: The abnormal sensation of throat was the major behavior of thyroglossal cyst in radix linguae.

结果：咽部异物不适感是发生于舌根的甲状舌管囊肿的主要临床表现；

The morphological features of the teeth, pharyngeal teeth, linguae and branchial rakers concerning with feeding were described.

描述了与摄食有关的齿、咽喉齿、舌和鳃耙的形态学特征；