The prognostic value of extramural venous invasion in preoperative MRI of rectal cancer patients.
Taru M LehtonenLaura E KoskenvuoToni T SeppäläAnna H LepistöPublished in: Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland (2022)
In MRI, circumferential margin ≤1 mm is a risk factor for local recurrence, but the risk is quite well controlled with chemoradiotherapy and extended surgery. Extramural venous invasion instead is a significant risk factor for poorer DFS and new tools to reduce the systemic recurrence risk are needed.