FAP and neoplasm: While this study focused on [68Ga]Ga-FAPI-04, it is important to acknowledge that other FAP-targeting tracers, such as [68Ga]Ga-FAPI-46 [27,28,29] and [18F]F-FAPI-74 [30,31], may exhibit different pharmacokinetics, tumor retention profiles, and background uptake characteristics.