External validation of a multi‐institutional retroperitoneal sarcoma nomogram

Abstract

The RPS nomogram was externally validated using a larger, independent cohort. The nomogram can be generalized to patients undergoing surgery for RPS by specialized sarcoma surgeons at sarcoma centers. The nomogram provides a more individualized and disease-relevant estimation of OS compared with the American Joint Committee on Cancer classification. Cancer 2016;122:1417-1424. © 2016 American Cancer Society.