Among the remaining 14 patients, Ga-68 PSMA PET/CT could successfully detect bone metastasis that was missed by bone scan in 3 patients (patients 3, 5, 23) and correctly excluded presence of metastasis that was recorded as score-1 (patients 1, 18, 25) or score-2 (patient 10) on bone scan in 4 patients. The gene discussed is FOLH1; the disease is bone metastasis.