iobenguane I 131

Definition / meaning of iobenguane I 131

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.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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