False Positive Radioiodinated Metaiodobenzylguanidine (123I-MIBG) Uptake in Undifferentiated Adrenal Malignant Tumor

<div>Early 123I-MIBG scintigraphy showed no 123I-MIBG uptake in suprarenal area (a). 24-hour delayed 123I-MIBG scintigraphy, however, showed increased 123I-MIBG uptake in left suprarenal area (b). On the image of 123I-MIBG SPECT/CT, left adrenal gland tumor showed 123I-MIBG uptake in the peripheral portion ((c), arrow).</div>

Case Reports in Oncological Medicine

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Figure 2

Figure 2: False Positive Radioiodinated Metaiodobenzylguanidine (123I-MIBG) Uptake in Undifferentiated Adrenal Malignant Tumor