ACR Appropriateness Criteria Recurrent Rectal Cancer

This is a clinical practice guideline for patients with recurrent rectal cancer. The guideline examines the appropriateness of treatment strategies including reirradiation, intraoperative radiotherapy, permanent seed implants, stereotactic body radiotherapy, and particle therapy. The effectiveness or radiation versus chemoradiation and the importance of preoperative or definitive radiation in these patients is also considered.