A term that refers to the staging of a pancreatic neuroendocrine tumor, following the rules of the TNM AJCC v8 classification system. This staging system applies to well-differentiated neuroendocrine tumors arising in the pancreas. Carcinomas of the pancreas, including high-grade (grade 3), poorly differentiated neuroendocrine carcinomas are not staged using this staging system. (from AJCC 8th Ed.) [from NCI]