Review
Copyright ©The Author(s) 2022.
World J Gastroenterol. Mar 14, 2022; 28(10): 1009-1023
Published online Mar 14, 2022. doi: 10.3748/wjg.v28.i10.1009
Table 1 World Health Organization classification of gastroenteropancreatic neuroendocrine neoplasms
Grade 1 NET
Grade 2 NET
Grade 3 NET
Grade 3 NEC
Mitoses/10 hpf
Ki-67
Mitoses/10 hpf
Ki-67
Mitoses/10 hpf
Ki-67
Mitoses/10 hpf
Ki-67
2010< 2< 3%2-203%-20%--> 20> 20%
20171< 2< 3%2-203%-20%> 20> 20%> 20> 20%
2019< 2< 3%2-203%-20%> 20> 20%> 20> 20%