This finding indicated that TSPO could serve as a marker of the repair process in inflammatory bowel diseases.86 Berroterán-Infante et al showed that [18F]-FEPPA (N-acetyl-N-(2-[18F]-fluoroethoxyben-zyl)-2-phenoxy-5-pyridinamine) had a high binding affinity to TSPO in CRC, as suggested by a competitive binding assay, and could have potential to be translated into clinical CRC imaging using PET.87 Here, TSPO is linked to colorectal carcinoma.