Effect of methylene blue infusion into the inferior mesenteric artery on lymph node retrieval after transabdominal total mesorectal excision for rectal cancer: a retrospective cohort study.

Front Oncol · 2026 · PMC13111029 · PMID 42052457

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did not reach statistical significanceno p-value reported

The number of positive lymph nodes detected in the experimental group increased compared to the control group, but the proportion of positive lymph nodes in both groups did not reach statistical significance.

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highly significantno p-value reported

There is also literature indicating that improving the accuracy of sentinel lymph node detection is highly significant ( 23 ).

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