Table 6. UICC TNM classification for GIST, 7th Edition, 2010.
| Mitotic rate (50HPFs) | Tumor size (cm) | T |
N | M | UICC stage |
||
|---|---|---|---|---|---|---|---|
| Gastric | Non-gastric | Gastric GIST | Non-gastric GIST | ||||
| 5 |
2 |
T1 |
T1 |
N0 |
M0 |
IA |
I |
| 2-5 |
T2 |
T2 |
N0 |
M0 |
IA |
I |
|
| 5-10 |
T3 |
T3 |
N0 |
M0 |
IB |
II |
|
| >10 |
T4 |
T4 |
N0 |
M0 |
II |
IIIA |
|
| >5 |
2 |
T1 |
T1 |
N0 |
M0 |
II |
IIIA |
| 2-5 |
T2 |
T2 |
N0 |
M0 |
II |
IIIB |
|
| 5-10 |
T3 |
T3 |
N0 |
M0 |
IIIA |
IIIB |
|
| >10 |
T4 |
T4 |
N0 |
M0 |
IIIB |
IIIB |
|
| Any | Any | Any |
Any |
N1 |
M0 |
IV |
IV |
| Any | Any | Any | M1 | IV | IV | ||
Abbreviation: UICC, the international union against cancer; GIST, gastrointestinal stromal tumor; HPF, high-power field