Perirenal 18F-FDG Uptake in a Patient with a Pheochromocytoma |
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Authors: | Jihyun Park Byung Hyun Byun Chang Won Jung Hansol Moon Kyoung Jin Chang Ilhan Lim Byung Il Kim Chang Woon Choi Sang Moo Lim |
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Affiliation: | 1. Department of Nuclear Medicine, Korea Cancer Center Hospital, 75, Nowon-ro, Nowon-gu, Seoul, 139-706, Republic of Korea 2. Department of Pathology, Korea Cancer Center Hospital, Seoul, Republic of Korea
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Abstract: | Increased 18F-fluorodeoxyglucose (FDG) uptake of brown fat on 18F-FDG positron emission tomography (PET) originating from physiological activation is a common incidental finding and is usually located in the neck, shoulder, and supraclavicular areas. We present a case of an incidental pheochromocytoma showing diffusely increased 18F-FDG uptake in bilateral perirenal fat tissue as well as supraclavicular and paravertebral fat tissue on 18F-FDG PET/CT. The patient had no clinical symptoms except hypertension, and a pheochromocytoma was confirmed in a postsurgical specimen. A pheochromocytoma should be considered a cause in cases of increased 18F-FDG uptake of perirenal brown fat. |
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Keywords: | Pheochromocyotoma Brown fat 18F-FDG Positron-emission tomography |
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