Oncology Central

The evolution in the detection of extramural venous invasion in rectal cancer: implications for modern-day practice


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.

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