Advanced Fibroblast Activation Protein-Ligand Developments: FAP Imaging Agents: A Review of the Structural RequirementsFibroblast Activation Protein Inhibitor PET in Pancreatic CancerThe Diagnostic Value of Fibroblast Activation Protein Imaging in Hepatocellular Carcinoma and Cholangiocellular CarcinomaFibroblast Activation Protein Inhibitor PET Imaging in Head and Neck CancerFibroblast Activation Protein Inhibitor-PET Imaging in Colorectal CancerFibroblast Activation Protein Inhibitor PET/CT in Gastric CancerCurrent Status of Fibroblast Activation Protein Imaging in Gynecologic Malignancy and Breast CancerFibroblast Activation Protein Inhibitor (FAPI)-PET Imaging in SarcomaFibroblast Activation Protein Inhibitor Theranostics: The Case for Use in SarcomaRadiation Therapy Planning Using Fibroblast Activation Protein InhibitorImaging FibrosisCardiac Applications of Fibroblast Activation Protein ImagingFibroblast Activation Protein Inhibitor Theranostics: Preclinical ConsiderationsFibroblast Activation Protein Inhibitor Theranostics: Preclinical Combination TreatmentFibroblast Activation Protein Inhibitor Theranostics: Early Clinical TranslationCurrent State of Clinical Trials and Regulatory Approvals with Fibroblast Activation Protein Targeting Interventions