MKI67 and neuroendocrine neoplasm: Although the TNM stage has an important role in standardizing the survival prognosticating of gNENs patients, however, predicting the prognosis of these patients solely relying on the TNM stage could be inaccurate as it ignored grade‐related factors such as Ki‐67 and mitotic count, which are the basis for defining the WHO G grade and was proved to have an obvious improvement in prognosis estimation; particular in neuroendocrine neoplasms.5, 21, 22, 23, 24