Stage I Anal Cancer AJCC v9

**Semantic type:** Neoplastic Process

**Definition:** Stage I includes: T1, N0, M0. T1: Tumor less than or equal to 2 cm in greatest dimension. N0: No tumor involvement of regional lymph node(s). M0: No distant metastasis. (AJCC 9th ed.)

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