Schmidkonz et al. [31], in a study of 142 patients, performed a quantitative assessment of all 641 PSMA-positive lesions in the field of view to calculate PSMA-derived parameters, including whole-body PSMA tumor volume (PSMA-TV) and whole-body total lesion PSMA (TL-PSMA) as well as the established SUVmax and SUVmean values. The gene discussed is FOLH1; the disease is neoplasm.