Chromogranin A is an accurate general marker for neuroendocrine tumors—most patients with pheochromocytomas or paragangliomas have high plasma concentrations of this marker. Grossrubatscher and ...

Current markers include plasma levels of chromogranin A, tumor metastases and Ki67 staining to determine the tumor proliferation rate. Previous studies have shown that FDG-PET for neuroendocrine ...