Prognostic factors predicting survival in incurable stage IV colorectal cancer patients who underwent palliative primary tumor resection. Retrospective cohort study

Locally advanced primary tumor (high pT stage, positive regional lymph node, and local residual primary tumor) was associated with poorer OS in incurable stage IV CRC patients, who underwent palliative PTR with chemotherapy. The PTR appears to result in better OS in patients with a primary tumor that is not locally advanced.