Stage III Anal Canal Cancer AJCC v6 and v7

**Semantic type:** Neoplastic Process

**Definition:** Stage III includes: IIIA (T1, N1, M0); (T2, N1, M0); (T3, N1, M0); (T4, N0, M0); IIIB (T4, N1, M0); (Any T, N2, M0); (Any T, N3, M0). T1: Tumor 2 cm or less in greatest dimension. T2: tumor more than 2 cm but not more than 5 cm in greatest dimension. T3: Tumor more than 5 cm in greatest dimension. T4: Tumor of any size that invades adjacent organ(s). N1: Metastasis in perirectal lymph node(s). N2: Metastasis in unilateral internal iliac and/or inguinal lymph node(s). N3: Metastasis in perirectal and inguinal lymph nodes and/or bilateral internal iliac and/or inguinal lymph nodes. M0: No distant metastasis. (AJCC 6th and 7th Eds.)

**Synonyms:** - Stage III Anal Canal Cancer - Stage III Anal Canal Cancer - Stage III Anal Canal Cancer AJCC v6 - Stage III Anal Canal Cancer AJCC v7 - Stage III Anal Canal Carcinoma AJCC v6 and v7 - Stage III Anal Carcinoma AJCC v6 and v7 - stage III anal cancer