Table 1 Risk classification of GISTs
From: Gastrointestinal stromal tumor: 15-years’ experience in a single center
Risk classification | Tumor size (cm) | Mitotic rate per 50 HPF | Tumor site |
|---|---|---|---|
Very low risk | <2 | <=5 | Any |
Low risk | 2.1-5.0 | <=5 | Any |
2.1-5.0 | >5 | Gastric | |
Intermediate risk | <5 | 6-10 | Any |
5.1-10 | <=5 | Gastric | |
High risk | Any | Any | Tumor rupture |
>10 | Any | Any | |
Any | >10 | Any | |
>5 | >5 | Any | |
2.1-5.0 | >5 | Non gastric | |
5.1-10.0 | <=5 | Non gastric |