Stage IIIB Anal Cancer AJCC v9

**Semantic type:** Neoplastic Process

**Definition:** Stage IIIB includes: T4, N0, M0. T4: Tumor of any size invading adjacent organ(s), such as the vagina, urethra, or bladder. N0: No tumor involvement of regional lymph node(s). M0: No distant metastasis. (AJCC 9th ed.)

**Synonyms:** - Stage IIIB Anal Canal and Perianal (Anal Margin) Carcinoma AJCC v9 - Stage IIIB Anal Carcinoma AJCC v9