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

Figure 1

Contrast-enhanced abdominal computed tomography shows a heterogeneously enhancing left adrenal mass (4.8 × 5.7 cm) with irregular internal tumor necrosis (white arrow). There was no abnormality in the right adrenal gland (not shown).