Fig. 1From: Proton therapy with a fixed beamline for skull-base chordomas and chondrosarcomas: outcomes and toxicityRepresentative proton irradiation summarized plan for skull-base CA: PTV1 (dark blue line) + PTV2 (red line). Tumor volume (green contour) = 30.6 cm3 (in legends physical doses are given)Back to article page