Nucl Med Mol Imaging.  2014 Sep;48(3):233-236. 10.1007/s13139-014-0276-2.

Perirenal 18F-FDG Uptake in a Patient with a Pheochromocytoma

• Park J
• Byun BH
• Jung CW
• Moon H
• Chang KJ
• Lim I
• Kim BI
• Choi CW
• Lim SM

• KMID: 2313200
• DOI: http://doi.org/10.1007/s13139-014-0276-2

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 post-surgical specimen. A pheochromocytoma should be considered a cause in cases of increased 18F-FDG uptake of perirenal brown fat.

Keyword

Pheochromocyotoma; Brown fat; 18F-FDG; Positron-emission tomography

MeSH Terms

Adipose Tissue, Brown
Fluorodeoxyglucose F18*
Humans
Hypertension
Incidental Findings
Neck
Pheochromocytoma*
Positron-Emission Tomography
Positron-Emission Tomography and Computed Tomography
Shoulder
Fluorodeoxyglucose F18