Pheochromocytoma is a tumor derived from the chromaffin cells of the adrenal medulla. When this type of tumor involves the sympathetic ganglia it is called paraganglioma. Although infrequent, paraganglioma should be considered in the evaluation of hypertension, arrhythmias, and panic disorder. We report the case of a woman with bladder pheochromocytoma and a hepatic lesion. MIBG scintigraphy showed non-physiological uptake, which was interpreted as a false positive result.
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