Representative FDG-PET-CT images of PaCa13 tumor-bearing mice on day 7 post-treatment initiation show that tumor edges are well delineated by FDG uptake (Fig. 1b); significant differences in tumor size among the three groups (Veh-ctrl, DC101, and Met-Gem) are already apparent at this time point. The gene discussed is GEM; the disease is neoplasm.