If a mass was found by CT, then mIBG scintigraphy (for a mass >2 cm) or MRI (for a mass <2 cm), should be performed next, regardless of whether such a lesion was a paraganglioma or a pheochromocytoma.

Second, because of widespread use of anatomic imaging studies, adrenal incidentalomas have become an important clinical entity for which pheochromocytoma must be considered, regardless of signs ...

The first iteration of MIBG was developed in ... 12 years and older with iobenguane scan positive, unresectable, locally advanced or metastatic pheochromocytoma or paraganglioma who require ...