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Iobenguane I-131
Definition 1
An I 131 radioiodinated synthetic analogue of the neurotransmitter norepinephrine. Iobenguane localizes to adrenergic tissue and, in radioiodinated forms, may be used to image or eradicate tumor cells that take up and metabolize norepinephrine. (NCI Thesaurus)
Definition 2
A radioactive substance that is used in imaging tests, and is being studied in the treatment of cancer. It is a type of radiopharmaceutical. (NCI Dictionary)
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