Despite greater toxicity, the use of MMC in a definitive CR regimen for anal cancer is justified, particularly in patients with large primary tumors. Salvage CR should be attempted in patients with residual disease following definitive CR before resorting to radical surgery.
This study confirms the value of CRT in EC treatment. It indicates that the results obtained in practice settings nationwide are similar to those obtained in clinical trials and that KPS and the 1983 clinical staging system are useful prognostic indicators. The suggested value of esophagectomy and superiority of preoperative CRT over CRT alone in this study should be tested in a randomized trial.
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