The methods target three different properties that can be expressed in chromaffin/pheochromocytoma cells– somatostatinreceptor expression ([68Ga]Ga-DOTA-TOC-PET, presence of LAT1 membrane proteins ([18F]F-DOPA-PET) and catecholamine turnover through presence of NET membrane proteins ([18F]-mFBG-PET and [123I]-mIBG-scintigraphy). Here, SLC6A2 is linked to pheochromocytoma.