Table 1 The NIH consensus criteria and the 7th UICC/AJCC TNM staging system for gastric GISTs
From: Two staging systems for gastrointestinal stromal tumors in the stomach: which is better?
Tumor size (cm) | Mitotic count (/50 HPF) | NIH criteria | UICC/AJCC TNM stagea |
|---|---|---|---|
≤2 | ≤5 | Very low | IA |
>2, ≤5 | ≤5 | Low | IA |
>5, ≤10 | ≤5 | Intermediate | IB |
>10 | ≤5 | Intermediate | II |
≤2 | >5 | Intermediate | II |
>2, ≤5 | >5 | Intermediate | II |
>5, ≤10 | >5 | High | IIIA |
>10 | >5 | High | IIIB |