| T0 |
Thyroid Cancer pT0 TNM Finding |
C60861 |
NCI Thesaurus |
Thyroid cancer with no evidence of primary tumor. (from AJCC 6th and 7th Eds.). |
| T1 |
Thyroid Cancer pT1 TNM Finding |
C60862 |
NCI Thesaurus |
Thyroid cancer with a tumor size of 2 cm or less in greatest dimension, and limited to the thyroid gland. (from AJCC 6th and 7th Eds.) |
| T1a |
Thyroid Cancer pT1a TNM Finding v7 |
C89148 |
NCI Thesaurus |
Thyroid cancer with a tumor size of 1 cm or less in greatest dimension, limited to the thyroid gland. (from AJCC 7th Ed.) |
| T1b |
Thyroid Cancer pT1b TNM Finding v7 |
C89149 |
NCI Thesaurus |
Thyroid cancer with a tumor size of more than 1 cm but not more than 2 cm in greatest dimension, limited to the thyroid gland. (from AJCC 7th Ed.) |
| T2 |
Thyroid Cancer pT2 TNM Finding |
C60863 |
NCI Thesaurus |
Thyroid cancer with a tumor size greater than 2 cm but not more than 4 cm in greatest dimension, and limited to the thyroid gland. (from AJCC 6th and 7th Eds.) |
| T3 |
Thyroid Cancer pT3 TNM Finding |
C60864 |
NCI Thesaurus |
Thyroid cancer with a tumor size greater than 4 cm in greatest dimension and limited to the thyroid gland, or a tumor of any size with minimal extrathyroid extension (e.g., extension to sternothyroid muscle or perithyroid soft tissues). (from AJCC 6th and 7th Eds.) |
| T4a |
Thyroid Cancer pT4a TNM Finding v7 |
C89150 |
NCI Thesaurus |
Thyroid cancer with moderately advanced local disease. Tumor of any size extending beyond the thyroid gland capsule to invade subcutaneous soft tissues, larynx, trachea, esophagus, or recurrent laryngeal nerve. (from AJCC 7th Ed.) |
| T4b |
Thyroid Cancer pT4b TNM Finding v7 |
C89152 |
NCI Thesaurus |
Thyroid cancer with very advanced disease. Tumor invades prevertebral fascia or encases carotid artery or mediastinal vessels. (from AJCC 7th Ed.) |
| TX |
Thyroid Cancer pTX TNM Finding |
C60860 |
NCI Thesaurus |
Thyroid cancer in which the primary tumor cannot be assessed. (from AJCC 6th and 7th Eds.) |