Sidedness Matters: Surrogate Biomarkers Prognosticate Colorectal Cancer upon Anatomic Location

Conclusion.Our study indicates that right‐sided colorectal tumors may display worse prognosis compared with left‐sided tumors in MMR‐P stage II CRC. Primary tumor location may serve as a prognostic factor that should be taken into account for recurrence risk assessment and consideration of adjuvant treatment.Implications for Practice.Sidedness matters, even in stage II colorectal cancer (CRC). Using two previously established prognostic tools, the Oncotype DX assay and CDX2 expression, this study found that right‐sided tumors may display worse prognosis compared with left‐sided tumors in mismatch repair‐proficient stage II CRC. Therefore, primary tumor location should be taken into account for recurrence risk assessment and consideration of adjuvant treatment.

Source: The Oncologist - August 13, 2019 Category: Cancer & Oncology Authors: Irit Ben-Aharon, Tal Goshen-Lago, Michal Sternschuss, Sara Morgenstern, Ravit Geva, Alexander Beny, Ygael Dror, Mariana Steiner, Ayala Hubert, Efraim Idelevich, Katerina Shulman, Moshe Mishaeli, Sophia Man, Nicky Liebermann, Lior Soussan-Gutman, Baruch Br Tags: Cancer Diagnostics and Molecular Pathology, Gastrointestinal Cancer Source Type: research