A Treatment Planning Comparison of Combined Photon-Proton Beams Versus Proton Beams-Only for the Treatment of Skull Base Tumors

These results suggest that the use of CP results in levels of target dose conformation similar to those with PP. Use of PP significantly reduced the tumor dose inhomogeneity and the delivered intermediate-to-low dose to NT and OARs, leading us to conclude that this treatment is mainly appropriate for tumors in children.