Fig. 2From: Are radiologists ready to evaluate true response to immunotherapy?Ilustration shows mechanisms of action of immune check point inhibitors, including anti-CTLA-4 (ipilumumab), anti-PD-1 (nivolumab, pembrolizumab) and, anti-PD-L1 (atezolizumab) monoclonal antibodies (permission obtained from RSNA, Wang GX, Kurra V, Gainor JF, et al. (2017) Immune Checkpoint Inhibitor Cancer Therapy: Spectrum of Imaging Findings. Radiographics 37:2132–44)Back to article page