VEGFA and colorectal neoplasm: Normalization of the vasculature occurred after irradiation at a dose of 5 times 5 Gy of a subcutaneous colorectal tumor in a rat where dynamic contrast-enhanced magnetic resonance imaging with gadomelitol showed reduction of neovascular leakage, enhanced tissue oxygenation and enhanced expression of vascular endothelial growth factor (VEGF) (Ceelen et al., 2006).