Stage IIB Appendix Carcinoma AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage IIB includes: T4a, N0, M0. T4a: Tumor invades through the visceral peritoneum, including the acellular mucin or mucinous epithelium involving the serosa of the appendix or serosa of the mesoappendix. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 8th ed.)

**Synonyms:** - Stage IIB Appendiceal Carcinoma AJCC v8 - Stage IIB Appendix Cancer