label: Stage IIIB Anal Canal Cancer AJCC v6 and v7
label_lc: stage iiib anal canal cancer ajcc v6 and v7
description: Stage IIIB includes: (T4, N1, M0); (Any T, N2, M0); (Any T, N3, M0). 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.)