Journal of Clinical Oncology, Vol 6, 119-127, Copyright © 1988 by American Society of Clinical Oncology
Potentially curative surgery of colon cancer: the influence of blood vessel invasion
BD Minsky, C Mies, TA Rich, A Recht and JT Chaffey
Department of Radiation Therapy, Harvard Medical School, Boston.
A number of series have examined the influence of blood vessel invasion
(BVI) by tumor on survival of patients with colorectal cancer; however,
there are little data available regarding its influence on patterns of
failure. In an effort to determine the influence of BVI on the patterns of
failure and survival in colon cancer, a retrospective review of 294
patients who underwent potentially curative surgery at the New England
Deaconess Hospital (NEDH) was performed. Patients whose tumors had BVI
experienced a significant decrease in the 5-year actuarial survival rate.
BVI had little impact on the patterns of failure in stage B2 disease, but a
significant increase in total failure and local failure (as a component of
failure) occurred in stage C2. However, when examined by proportional
hazards analysis, BVI was found not to be an independent prognostic
variable. For patients with stage C2 tumors, which are also BVI+, radiation
therapy to the tumor bed might play a contributory role in overall
management.