Stage III Anal Cancer AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage III includes: IIIA: (T1, N1, M0); (T2, N1, M0); IIIB: (T4, N0, M0); IIIC: (T3, N1, M0); (T4, N1, M0). T1: Tumor 2 cm or smaller. T2: Tumor larger than 2 cm but equal to or smaller than 5 cm. T3: Tumor larger than 5 cm. T4: Tumor of any size invading adjacent organ(s), such as the vagina, urethra, or bladder. N0: No regional lymph node metastasis. N1: Metastasis in inguinal, mesorectal, internal iliac, or external iliac nodes. M0: No distant metastasis. (AJCC 8th ed.)

**Synonyms:** - Stage III Anal Canal and Perianal (Anal Margin) Carcinoma AJCC v8 - Stage III Anal Cancer - Stage III Anal Carcinoma AJCC v8