Radiotracers for CD206 (Fig. 3), such as [18F]FDM, [68Ga]NOTA-MSA, and [68Ga]NOTA-anti-MMR-nanobody (Nb), have been developed and studied mainly in animal models for atherosclerosis (Tahara et al. 2014; Blykers et al. 2015; Kim et al. 2016; Varasteh et al. 2019; Xavier et al. 2019). Here, MRC1 is linked to atherosclerosis.