Appendix Carcinoma TNM Finding v9

**Semantic type:** Finding

**Definition:** A finding about one or more characteristics of appendix carcinoma, following the rules of the TNM AJCC v9 classification system. This classification system applies to adenocarcinomas, mucinous neoplasms (low-grade mucinous neoplasms and high-grade mucinous neoplasms), poorly differentiated neuroendocrine carcinomas, mixed neuroendocrine-nonneuroendocrine neoplasms (mixed adenocarcinoma-neuroendocrine carcinoma), and goblet cell adenocarcinomas (formerly termed goblet cell carcinoids). Well-differentiated neuroendocrine tumors (carcinoids) are classified according to the classification for neuroendocrine tumors of the appendix. (from AJCC 9th Ed.)

**Synonyms:** - Appendiceal Carcinoma TNM Finding v9