FOLH1 and neoplasm: Our goal was to determine the potential for large-scale expression data derived from multi-institutional consortia to predict PSMA radiotracer uptake in adult and pediatric tumors, assess the potential for predicting uptake of PSMA radiotracers using FOLH1 gene expression in normal tissues, and discern whether the expression of blood–brain barrier and blood–tumor barrier components may give insights into differential uptake of PSMA radiotracers in CNS tumors.