Accuracy of Endoscopic Ultrasound to Assess Tumor Response After Neoadjuvant Treatment in Rectal Cancer: Can We Trust the Findings?

Abstract

Endoscopic ultrasound allows prediction of involved lymph nodes in 75% of the cases; however, 1 in 5 patients are missclassified as uN0 after neoadjuvant treatment. In our point of view, this percentage is too high to rely only on this diagnostic modality to support a "wait and see" approach.