<prompt> MIBG metaiodobenzyl guanithidine is analogue to:EpinephrineAdenineNorepinephrineGuanine  <response>: Answer- C NorepinephrinePheochromocytoma can be localized using radioactive tracers including 131 I-or 123 l- metaiodobenzyl guanithidine MIBG, 111 ln-somatostatin analogues, or 18 F-dopa or dopamine Positron-emission tomography PET. 