The increase in [18F]siPSMA-14 concentration in the PSMA+ tumor (slope: (0.0151 ± 0.0014) %IA/mL/min) was nearly identical to the PSMA− tumor (slope: (0.0152 ± 0.0008) %IA/mL/min). The gene discussed is FOLH1; the disease is neoplasm.