Which one of the following imaging modalities is most sensitive for evaluation of extra-adrenal Pheochromocytoma –: (A) Ultrasound, (B) CT, (C) MRI, (D) MIBG scan
Answer is D. MIBG is taken up by catecholamine granules and is used mainly for localizing pheochromocytomas in the adrenal and in extra-adrenal sites and for the detection of metastasis.