When comparing absolute SUV, our findings are consistent with previously reported cases of FAP PET imaging using [68Ga]Ga-FAPI-04 in a larger RCC cohort (SUVmax, 3.1 vs. 3.2), and a comparison with 28 types of cancer revealed RCC to have the lowest uptake, comparable to our results (2,12). Here, FAP is linked to renal cell carcinoma.