Comparative performance of the 7th and the 8th editions of the American Joint Committee on Cancer staging systems for soft tissue sarcoma of the trunk and extremities

摘要

Background:The 8^th edition AJCC staging for soft tissue sarcomas of the trunk/extremities divides T-stage into 4 categories and upstages nodal disease to stage IV. We used the NCDB to evaluate the prognostic power of the new system.