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Indian J Nucl Med. 2019 Jul-Sep;34(3):254-255. doi: 10.4103/ijnm.IJNM_166_18.

Pheochromocytoma: Positive on 131I-MIBG Single-Photon Emission Computed Tomography-Computed Tomography and Negative on 68Ga DOTANOC Positron Emission Tomography-Computed Tomography.

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Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.


Pheochromocytomas are tumors arising from sympathetic lineage-derived cells in adrenal medulla, and 68Ga DOTANOC positron emission tomography-computed tomography (PET-CT) has been found to be superior than 131I MIBG single-photon emission computed tomography-computed tomography (SPECT-CT) for initial localization/diagnosis of the adrenal lesion. We discuss the 68DOTANOC PET-CT and 131I MIBG SPECT-CT findings of a 24-year-old male who presented with clinical and biochemical findings suspicious of pheochromocytoma.


DOTANOC; MIBG; pheochromocytoma; positron emission tomography; single-photon emission computed tomography

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