Brown adipose fat

Case contributed by Dr Anna Margherita Maffione


Hodgkin disease follow-up.

Patient Data

Age: 36
Gender: Female
Nuclear medicine


Symmetric intense FDG uptake in the neck, supraclavicular fossa, paravertebral, axilla and mediastinum, corresponding to fat areas, is shown. These hypermetabolic areas are compatible with activated brown adipose fat (BAT) and shouldn't be confused with malignancy localizations. 

Case Discussion

Activated brown adipose fat is a potential pitfall on 18-FDG PET/CT.

The PET/CT study has been performed on January and the patient is relatively young. It is well known that BAT accumulation is inversely proportional to age and its metabolism is extremely stimulated by cold temperature.

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Case information

rID: 33317
Published: 7th Jan 2015
Last edited: 16th Sep 2015
Inclusion in quiz mode: Included

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