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Updated: Jun 11, 2025

Functional Imaging of Brown Fat in Mice with 18F-FDG micro-PET/CT
Published on: November 23, 2012
FDG Uptake in Brown Adipose Tissue Activated by a Long-Acting β2-Adrenergic Receptor Agonist Inhaler Prescribed for
Akira Nitta1, Tomoya Kotani1, Chio Okuyama2
1From the Department of Radiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Abstract:
We herein report a case of an elderly woman in whom brown adipose tissue (BAT) was visible on 18 F-FDG PET imaging performed in the summer. In this patient, none of the well-known factors that induce BAT activation in adults, including cold exposure, catecholamine-producing tumors, or β3-adrenergic receptor agonists administration, were present. Daily inhalation of a long-acting β2-adrenergic agonist for treatment of her bronchial asthma was considered the cause of her BAT visualization. This case suggests the need to consider β2-adrenergic receptor agonists as a cause of BAT visualization.
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