Abstract
Intense FDG uptake of the mesenteric brown adipose tissue (BAT) is rare. We present a case of benign retroperitoneal pheochromocytoma showing multiple hypermetabolic regions corresponding with common locations of BAT. Furthermore, the mesenteric region showed intense FDG uptake, with SUVmax of 10.6. FDG PET/CT findings of this case supports the previous theories that the incidence of BAT may be higher in patients with pheochromocytoma than in patients without, and the intra-abdominal fat of human adults, including the omental fat, which is brown adipose tissue in infancy, becomes reactivated in the presence of high circulating noradrenaline concentrations.
Publication types
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Case Reports
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Research Support, Non-U.S. Gov't
MeSH terms
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Adipose Tissue, Brown / diagnostic imaging
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Adipose Tissue, Brown / metabolism*
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Adipose Tissue, Brown / pathology
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Adrenal Gland Neoplasms / diagnostic imaging
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Adrenal Gland Neoplasms / pathology
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Adult
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Fluorodeoxyglucose F18*
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Humans
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Male
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Mesentery / diagnostic imaging
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Mesentery / metabolism*
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Mesentery / pathology
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Multimodal Imaging*
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Pheochromocytoma / diagnostic imaging*
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Pheochromocytoma / metabolism
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Pheochromocytoma / pathology
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Positron-Emission Tomography*
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Retroperitoneal Neoplasms / diagnostic imaging*
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Retroperitoneal Neoplasms / metabolism
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Retroperitoneal Neoplasms / pathology
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Tomography, X-Ray Computed*