Is extramural venous invasion (EMVI) alone an indication to treat rectal cancer patients with total neoadjuvant therapy as opposed to neoadjuvant chemoradiation therapy or short course radiation therapy alone?
Answer from: Radiation Oncologist at Academic Institution
EMVI detected on a staging pelvic MRI for rectal cancer has been shown to be a poor prognostic factor with an increased risk for distant metastases (Siddiqui et al., PMID 28449006). EMVI was also independently associated with a positive circumferential resection margin in low rectal tumors based on ...
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