18F-DOPA, 18F-fluoro-labeled fluorodopamine; 123I-MIBG, 123-iodine-labeled meta-iodobenzylguanidine; 68GA-DOTA-SSA, 68-gallium labeled DOTA somatostatin analogs; SDHx, succinate dehydrogenase Type x; NF1, neurofibromatosis type 1; RET, RET proto-oncogene; VHL, von Hippel–Lindau; MAX, Myc-associated factor X. This evidence concerns the gene RET and neurofibromatosis type 1.