The survival of NET depends on the site and the stage according to the 2022 Tumor, Node, Metastasis (TNM) classification and the World Health Organization (WHO) histopathological classification, which expresses both the morphological appearance of the tumor and its proliferative activity in terms of the number of mitoses and the proliferation index (by assessing the Ki-67 index and thus the disease grading) [2,3]. The gene discussed is MKI67; the disease is neoplasm.