(123)I-mibg scintigraphy uptake in a hepatic lesion

Area of Science:

• Endocrinology
• Oncology
• Nuclear Medicine

Background:

• Pheochromocytoma originates from adrenal medulla chromaffin cells; paraganglioma involves sympathetic ganglia.
• These rare tumors can manifest as hypertension, arrhythmias, or panic disorder.
• Accurate diagnosis is crucial for effective management.

Purpose of the Study:

• To report a unique case of bladder pheochromocytoma with a hepatic lesion.
• To discuss the diagnostic utility and limitations of MIBG scintigraphy in such cases.

Main Methods:

• Case report of a woman with bladder pheochromocytoma and hepatic lesion.
• Utilized MIBG scintigraphy for tumor imaging.
• Interpreted scintigraphy findings in clinical context.

Main Results:

• The patient presented with a bladder pheochromocytoma and a concurrent hepatic lesion.
• MIBG scintigraphy demonstrated non-physiological uptake in the lesion.
• The uptake was ultimately deemed a false positive result.

Conclusions:

• Bladder pheochromocytoma is rare but should be considered in differential diagnoses.
• MIBG scintigraphy may yield false positive results, necessitating careful interpretation.
• Integrated diagnostic approaches are vital for managing rare neuroendocrine tumors.