FOLH1 and neoplasm: For instance, Seifert et al. reported on PSMA-positive tumor volume (PSMA-TV) [14] and PSMA total lesion quotient derived from [68 Ga]Ga-PSMA-11 as being associated with OS [14], while a low average SUVmax of all PSMA-positive lesions was a negative prognosticator for survival [14].