This is study retrospectively analyzed 311 patients with sinonasal tumors treated with IMRT or PT. With median follow-up of 75 months, this study reported 10-year LC, regional control, DMFS, PFS, and OS rates were 73%, 88%, 47%, 32%, and 51%, respectively. There was a 13% rate of late grade ≥3 toxicities. The authors concluded that their data demonstrated favorable disease control rate and acceptable toxicity profile.