所有直接或间接分类法都把喉癌侵犯甲状软骨列入高“T”级并表明预后不良。此结论是否合理尚待探讨,因预后不仅在于病变范围而是取决于多种因素,只有对全喉作连续切片鉴定并研究其远期情况,才能看出甲状软骨受侵犯的重要意义。甲状软骨构成喉支架的大部分。人类喉软骨的形状、大小与结构对性别、大小及相互关系有重要差异。喉软骨骨化类型更具有临床意义。人类喉软骨骨化一般发生在30岁,随着年龄的增长骨化程度渐增。甲状软骨骨化从下角根部后缘开始,沿下缘扩展到中线,约有20%可扩展到板的后上部与上角。如果甲状软骨翼板的中央可见 All direct or indirect classifications have infiltrated thyroid cartilage into a high “T” grade and indicate a poor prognosis. Whether this conclusion is reasonable is still to be explored, because the prognosis depends not only on the extent of the disease but on a variety of factors. Only the continuous slicing of the whole larynx for identification and study of its long-term situation can be seen the importance of thyroid cartilage invasion. Thyroid cartilage constitutes the majority of the laryngeal stent. The shape, size, and structure of human laryngeal cartilage are important differences in gender, size, and relationship. Laryngeal cartilage ossification type has more clinical significance. The ossification of human laryngeal cartilage generally occurs in the 30-year-old, and the degree of ossification gradually increases with age. The ossification of the thyroid cartilage begins at the posterior edge of the inferior angle root and extends along the lower edge to the midline, with approximately 20% extending to the posterosuperior and superior angles of the plate. If the center of the thyroid cartilage wing is visible