Five-Year Survival 10 to 60 percent with positive regional lymph nodes , 40 to 60 percent when the tumor is within the bowel wall (C1), 20 to 40 percent when the tumor extends through the bowel wall (C2), 10 to 30 percent when adjacent structures are involved (C3). These data do not reflect adjuvant therapy programs.
The Consensus Conference used positive lymph nodes for determining prognosis with previous therapy. If one to four nodes are positive, 55 to 60 percent may be cured. When five or more nodes are positive, only 33 percent will be cured. Adjuvant therapy will improve all the old prognostic figures.
