Worth Attention glioblastoma Protons Reirradiation Hypofractionated proton reirradiation showed similar survival to photons in recurrent glioblastoma Median survival was 8.3 months after proton reirradiation, with 5.6% grade 3–4 radiation necrosis and no survival difference versus photons. RadOncToday · 3 Jul 2026 ·1 min read