TSPO and tauopathy: In this way, the neuroinflammatory process has been proposed as possible diagnostic tools, through in vivo uptake of the microglia, using positron emission tomography (PET) images with the translocator protein (TSPO) ligand [11C]-PK11195 in the FTD and other tauopathies (Cagnin et al., 2004; Venneti et al., 2009; Zhang, 2015).