Stage III Anal Cancer AJCC v9

**Semantic type:** Neoplastic Process

**Definition:** Stage III includes: IIIA: T3, N0-N1, M0; IIIB: T4, N0, M0; IIIC: T4, N1, M0. T3: Tumor greater than 5 cm in greatest dimension. 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). N1: Tumor involvement of regional lymph node(s). M0: No distant metastasis. (AJCC 9th ed.)

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