Case Author(s): J. Wallis , 5/31/95 . Rating: #D3, #Q4

Diagnosis: Pheochromocytoma

Brief history:

Elevated catecholamines


Anterior and Posterior images at 48 hours

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Full history/Diagnosis is available below

Diagnosis: Pheochromocytoma

Full history:

41 year old man with prior resection of a right adrenal pheochromocytoma 5 years ago. Now the patient has elevated catecholamines and a low attenuation lesion in the posterior segment of the right hepatic lobe.


Intense uptake is seen in a focus within the liver, corresponding to the lesion seen on the CT examination. No additional abnormal foci were identified.


At surgery, the liver lesion was confirmed to be metastatic pheochromocytoma. However, there were also small peritoneal metastases not visualized on this I-131 MIBG scintigraphy. It is possible that they would have been evident on a higher resolution I-123 MIBG study; however the I-123 version of this tracer was not commercially available at the time of this study in the mid 1990's.

ACR Codes and Keywords:

References and General Discussion of MIBG Scintigraphy (Anatomic field:Genitourinary System, Category:Neoplasm, Neoplastic-like condition)

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Case number: mb003

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