The inclusion criteria for the PNETs patients in our study were as follows: (1) patients with a surgery and pathological diagnosis of pancreas tumor, and graded by the European Neuroendocrine Tumor Society (ENETS), WHO 2017, based on mitotic count and Ki-67 index; (2) diagnostic MRI scans before surgery; (3) MRI images with a slice thickness of 5 mm or less. The gene discussed is MKI67; the disease is neoplasm.