Risk Stratification Modification Joensuu 2008) I Risk Category Tumor Size(cm) Mitotic Index (per 50 HPFs) Primary Tumor Site Very low risk <2.0 <5 An Low risk 2.150 <5 A Intermediate risk 2.150 5 Gastric 5.0 6-10 A 5.1-10.0 <5 Gastric High risk A A Tumor rupture >10 Any A >10 A 50 Ar 2.1-5.0 Nongastric 5.1-10.0 >5 Nongastric Joensuu, Human Path ology Vol 39, No. 10.(October 2008). pp. 1411-1419