Advanced Neuroendocrine Tumor

**Semantic type:** Neoplastic Process

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

**Synonyms:** - Advanced Carcinoid Tumor - Advanced Carcinoid Tumor - Advanced Well Differentiated Neuroendocrine Neoplasm - Advanced Well Differentiated Neuroendocrine Neoplasm