Nuclear imaging to characterize adrenal tumors: Comparison with MRI

Figure 4 Right hypersecreting adenoma of the adrenal gland. A: Abdominal posterior scan of I-131 nor-cholesterol scintigraphy demonstrates abnormal (intense) focal uptake in the right adrenal (black arrow) where a mass was detected by magnetic resonance (MR); no uptake is detected on the contralateral side; normal bowel uptake is detectable on the left; B: T1-weighted axial MR detects a right adrenal lesion isointense compared to liver signal intensity (white arrow).