Appendix Tubular Neuroendocrine Tumor

**Semantic type:** Neoplastic Process

**Definition:** A neuroendocrine tumor that arises from the appendix. It does not show the morphologic characteristics of typical carcinoid tumors (neoplastic cells forming solid nests). In contrast, the tumor cells form small discrete tubules.

**Synonyms:** - Appendix Tubular Carcinoid - Appendix Tubular Carcinoid Tumor - Appendix Tubular NET - Tubular NET - Tubular Neuroendocrine Tumor - Tubular carcinoid