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http://dx.doi.org/10.1097/SMJ.0b013e318167acd4 | DOI Listing |
We used a new radiopharmaceutical agent, [131I]meta-iodobenzylguanidine ([131I]MIBG), to produce scintigraphic images of pheochromocytomas in eight patients. One day or more after injection, the only normal organ that displayed distinct concentrations of radioactivity was the urinary bladder. The [131I]MIBG was probably concentrated in adrenergic vesicles; in tissues where vesicles are numerous, such as pheochromocytomas, the radionuclide was retained for days.
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