If left untreated, cancers often go through three stages: 1. Local growth and damage to nearby tissues Cancer cells multiply quickly. Staging and Grading Cancer
Stages of Colorectal Cancer with Dukes and TNM staging system | Health Topics 1. Older colorectal cancer stages is based on Dukes staging system. Stage 1: (Dukes'A): 0) lesions limited to mucosal layer (carcinoma in situ).
Union for International Cancer Control