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Previous studies looking at the influence of positive circumferential margin (CRM) on survival after oesophagectomy are conflicting. This may be due to the fact that older versions of the TNM classification were used, which do not predict survival as accurately as the new 7th edition. We examine whether CRM involvement has an impact on survival when the 7th TNM classification is used.

The impact of positive circumferential margin on survival following oesophagectomy using the new 7th TNM classification†