2002
American Joint Committee on Cancer (AJCC) TNM Staging System for the Colon
and Rectal Cancer
TX: Primary tumor cannot be assessed
T0: No evidence of primary tumor
Tis: Carcinoma in situ: intraepithelial or invasion of lamina propria
T1: Tumor invades submucosa
T2: Tumor invades muscularis propria
T3: Tumor invades through the muscularis propria into the subserosa, or into
nonperitonealized pericolic or perirectal tissues
T4: Tumor directly invades other organs or structures, and/or perforates
visceral peritoneum |