FOLH1 and neoplasm: In general, the panel agreed on a definition of PSMA response as Complete in case of disappearance of any lesion with tracer uptake; Partial as reduction of uptake and tumor PET volume by > 30%; Stable as change of uptake and tumor PET volume ± ≤ 30% without evidence of new lesions; Progression as appearance of > 2 new lesions or increase of uptake or tumor PET volume >= 30% (statement 3.9).