TABLE 90-11
| Table 90-11. Primary Tumor Staging Characteristics for Carcinoma of the Hypopharynx | |
| Tx | Primary tumor cannot be assessed |
| T0 | No evidence of primary tumor |
| Tis | Carcinoma in situ |
| T1 | Tumor limited to one subsite of the hypopharynx and less than 2 cm in size |
| T2 | More than one subsite or involving an adjacent site or between 2-4 cm in size without fixation of the larynx |
| T3 | More than 4 cm in size or with fixation of larynx |
| T4 | Tumor invades adjacent structures of the neck such as the soft tissues, prevertebral fascia, esophagus, thyroid or cricoid cartilage, thyroid gland, etc. |