ArticleTranslational cancer research2025
Ramifications of lymph node metastasis in patients with pT1 colorectal cancer.
Article in Translational cancer research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: The prognosis of stage IIIA colorectal cancer (CRC) is much better than stage II CRC in Japan. The purpose of this study was to investigate the implications of lymph node metastasis (LNM) in patients with pT1 CRC and to explore potential downstaging of pT1N1 CRC. Methods: This retrospective cohort study was undertaken at a high-volume cancer center in Japan, grouping all eligible patients with radically resected pT1 CRC (n=723) according to presence (LNM+) or absence (LNM-) of LNM. We compared relapse-free survival (RFS) and cancer-specific survival (CSS) rates before and after propensity score matching. Results: LNM was ultimately confirmed in 96 study subjects (13.3%). Ninety-two patients (95.83%) were N1 and only 4 (4.17%) patients were N2. Before matching, tumors of the LNM+ ( Conclusions: LNM does not affect the long-term survival of patients with pT1N1CRC after radical resection. Appropriate downstaging from stage IIIA may be a reasonable prospect for pT1N1CRC with a low recurrence factor.
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