Several studies with histopathological verification have shown high specificity of PSMA ligands for lymph node metastases, including one from our own center performed with [18F]PSMA-1007 (Ingvar et al. 2022; Baas et al. 2022; Hope et al. 2021; Pienta et al. 2021). The gene discussed is FOLH1; the disease is metastatic malignant neoplasm in the lymph nodes.