Opinion Review
Copyright ©The Author(s) 2020.
World J Clin Cases. Aug 6, 2020; 8(15): 3142-3155
Published online Aug 6, 2020. doi: 10.12998/wjcc.v8.i15.3142
Table 2 Joensuu criteria for gastrointestinal stromal tumor risk assessment
Risk categoryTumor size (cm)Mitotic index (per 50 HPF)Primary tumor site
Very low< 2≤ 5Any
Low2.1-5≤ 5Any
Intermediate2.1–5> 5Gastric
< 56–10Any
5.1-10≤ 5Gastric
HighAnyAnyTumor rupture
> 10AnyAny
Any> 10Any
> 5> 5Any
2.1–5> 5Non-gastric
5.1-10≤ 5Non-gastric