FOLH1 and neoplasm: [177Lu]Lu-PSMA-Q showed the highest tumor-to-muscle ratio of 16.77 ± 3.27, followed by [177Lu]Lu-PSMA-617 (14.51 ± 4.64), [177Lu]Lu-PSMA-BP (10.21 ± 5.66) and [177Lu]Lu-PSMA-4PY (7.54 ± 3.85).