Retrospective Study
Copyright ©The Author(s) 2022.
World J Gastroenterol. Oct 7, 2022; 28(37): 5457-5468
Published online Oct 7, 2022. doi: 10.3748/wjg.v28.i37.5457
Table 1 The modified National Institute of Health risk classification of small Gastrointestinal stromal tumors
Risk classification
Tumor diameter (d/cm)
Mitotic count (number/50 HPF)
Very-lowD ≤ 2Mitotic ≤ 5
IntermediateD ≤ 25 < mitotic ≤ 10
HighD ≤ 2Mitotic > 10