Figure 1 Anterior (left) and posterior (right) whole body scan of a patient with phaeochromocytoma of the right adrenal seen as a small intense focus of uptake. These diagnostic images acquired 22 hours after administration of 123I-MIBG can be used to assess the prospects for therapy with 131I-MIBG. Uptake of tracer can also be seen in the salivary glands, liver and urinary tract.

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