FOLH1 and metastatic malignant neoplasm in the lymph nodes: At PET1, 113 PSMA-positive metastases were analyzed in n = 18 patients (mean of 6.3 metastases/patient): n = 28 lymph node metastases, n = 28 osseous metastases, n = 8 hepatic metastases, n = 29 pulmonary metastases, n = 15 soft tissue metastases and n = 5 other metastases (n = 2 pancreas, n = 2 adrenal gland, n = 1 peritoneal).