FOLH1 and metastatic malignant neoplasm in the lymph nodes: Significantly less ganglia showed FDG uptake (p < 0.001), so the PSMA/FDG PET combination was shown to detect lymph node metastases when both were avid (PSMA SUVmax >2.05 and FDG SUVmax >4.1; 43/47, 92%) compared to low or no avidity (PSMA SUVmax <2.05 and FDG SUVmax <4.1; 3/334, 1%).