NCIt synonyms : Iodine I 123-Metaiodobenzylguanidine; I-123-MIBG;
NCIt definition : The neurotransmitter analogue 3-nitrobenzylguanidine conjugated to iodine I 123 and
used as a gamma-emitting imaging agent. The adrenergic tissue uptake and storage of
I-123 metaiodobenzylguanidine (I-123 MIBG) mimics that of norepinephrine (NE). The
distribution of this agent enables the scintigraphic imaging of neural crest tumors,
such as neuroblastoma and pheochromocytoma.;