Scintigraphic Depiction of an Insulinoma by I-131 Metaiodobenzylguanidine

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Abstract
Scintigraphy with I-131 metaiodobenzylguanidine (MIBG) was effective in depicting a pancreatic insulinoma in a patient suffering from intermittent hypoglycemia. This observation widens the range of neuroendocrine tumors that take up to I-131 MIBG and supports the concept that many tumors of the amine precursor uptake and decarboxylation system may be imaged in this way.