Advanced Non-Functioning Neuroendocrine Tumor

**Semantic type:** Neoplastic Process

**Definition:** A non-functioning neuroendocrine tumor that has spread extensively to other anatomic sites or is no longer responding to treatment.

**Synonyms:** - Advanced Non-Functioning Well Differentiated Neuroendocrine Neoplasm - Advanced Nonfunctional Neuroendocrine Tumor - Advanced Nonfunctional Well Differentiated Neuroendocrine Neoplasm - Advanced Nonfunctioning Well Differentiated Neuroendocrine Neoplasm