Pancreatic Neuroendocrine Tumor by AJCC v9 Stage

**Semantic type:** Neoplastic Process

**Definition:** A term that refers to the staging of pancreatic neuroendocrine tumor, based on the American Joint Committee on Cancer (AJCC) v9 staging guidelines. This staging system applies only to well-differentiated neuroendocrine tumors of the pancreas (NET G1, G2, and G3). It does not apply to carcinomas of the pancreas, including poorly differentiated neuroendocrine carcinoma (NEC) and mixed neuroendocrine non-neuroendocrine (MiNEN) neoplasms of the pancreas. (from AJCC 9th Ed.)