<prompt> MIBGmetaiodobenzyl guanithidine is analogue to :EpinephrineAdenineNorepinephrineGuanine  <response>: Ans: C Norepinephrine As an analogue of adrenergic neurotransmitter norepinephrine NE, metaiodobenzylguanidine MiBG demonstrates high uptake both in normal sympathetically innervated tissues, such as the heart and salivary glands, and in tumors that express the NE transporter NET, specifically those of neural crest and neuroendocrine origin- ncbi.nlm.nih.govPheochromocytoma can be localized using radioactive tracers including 131I- or 123I-metaiodobenzylguanidine MIBG, 111In- somatostatin analogues, or 18F-dopa or dopamine positron- emission tomography PET. Because these agents exhibit selective uptake in paragangliomas, nuclear imaging is particularly useful in the hereditary syndromes 