Collaborative Stage for TNM 7 - Revised 09/10/2009 [ Schema ]
MelanomaChoroid
Extension Size Category AJCC7
- Note: ^ For Extension codes 150 through 180, the T value is assigned based on the values of tumor basal diameter, recorded in SSF2, and thickness, recorded in SSF3, for AJCC 7th Edition staging. Basal diameter and thickness are mapped to Tumor Size Categories in the Size Category Table AJCC7, and the Extension codes and Tumor Size Categories are mapped to T values in the Extension Size Category Table AJCC7.
| CS Extension Code | Tumor Size Category | T Value |
| 150 | 1 | T1a |
| 160 | 1 | T1b |
| 170 | 1 | T1c |
| 180 | 1 | T1d |
| 150 | 2 | T2a |
| 160 | 2 | T2b |
| 170 | 2 | T2c |
| 180 | 2 | T2d |
| 150 | 3 | T3a |
| 160 | 3 | T3b |
| 170 | 3 | T3c |
| 180 | 3 | T3d |
| 150 | 4 | T4a |
| 160 | 4 | T4b |
| 170 | 4 | T4c |
| 180 | 4 | T4d |
| 150 | 9 | TX |
| 160 | 9 | TX |
| 170 | 9 | TX |
| 180 | 9 | TX |