International Scholarly Research Notices

Review Article

General Aspects of Colorectal Cancer

Table 1

Stage systems AJCC, Dukes, and Astler-Coller. AJCC system is the most used and precise staging system for CRC and combines three letters (T: for the primary tumour, N: for spread to lymph nodes, and M: for metastasis) and numbers from 0 to 4 (indicating more severity for a higher number).
AJCC/TNMDukesAstler-Coller
Stage 0Tis, N0, M0——
Stage IT1-T2, N0, M0AA, B1
Stage IIAT3, N0, M0BB2
Stage IIBT4a, N0, M0BB2
Stage IICT4b, N0, M0BB3
Stage IIIAT1-T2, N1, M0 C C1
T1, N2a, M0
Stage IIIBT3-T4a, N1, M0 C C1, C2
T2-T3, N2a, M0
T1-T2, N2b, M0
Stage IIICT4a, N2a, M0 C C2, C3
T3-T4, N2b, M0
T4b, N1-N2, M0
Stage IVAny T, Any N, M1a — D
Any T, Any N, M1b