Appendix Carcinoma pT4 TNM Finding v9

**Semantic type:** Finding

**Definition:** Appendix carcinoma with tumor invading the visceral peritoneum, including the acellular mucin or mucinous epithelium involving the serosa of the appendix or mesoappendix, and/or directly invading adjacent organs or structures. (from AJCC 9th Ed.)

**Synonyms:** - Appendiceal Carcinoma pT4 TNM Finding v9