Original Publication Date: 1 December, 2014
Publication / Source: Colorectal Cancer
Authors: Manish Chand, Richard J Heald, Nick West et al.
Venous invasion has been considered a poor prognostic factor in rectal cancer for over half a century. This term has evolved in recent years and now applies specifically to tumor invasion into extramural veins – extramural venous invasion. This distinction from intramural venous invasion is important as it is more clinically relevant.