Metabolically Active Brown Fat Mimicking Pericardial Metastasis on PET/CT: The Discriminating Role of Cardiac Magnetic Resonance Imaging

Abstract Metabolically active mediastinal brown adipose tissue may be mistakenly diagnosed as a malignancy on 18F-fluoro-2-deoxy-D-glucose (FDG)/positron emission tomography (PET). We report the case of a patient with locally recurrent breast carcinoma in which staging PET/CT revealed a suspicious p...

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Bibliographic Details
Published in:Canadian journal of cardiology 2016-08, Vol.32 (8), p.1039.e15-1039.e17
Main Authors: Pagé, Maude, MD, Quarto, Cesare, MD, Mancuso, Enrico, MD, Mohiaddin, Raad H., MD, PhD
Format: Article
Language:English
Subjects:
Adipose Tissue, Brown - pathology
Adult
Breast Neoplasms - pathology
Cardiovascular
Diagnosis, Differential
Female
Heart Neoplasms - diagnosis
Heart Neoplasms - secondary
Humans
Magnetic Resonance Imaging, Cine
Pericardium - pathology
Positron Emission Tomography Computed Tomography
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Summary:Abstract Metabolically active mediastinal brown adipose tissue may be mistakenly diagnosed as a malignancy on 18F-fluoro-2-deoxy-D-glucose (FDG)/positron emission tomography (PET). We report the case of a patient with locally recurrent breast carcinoma in which staging PET/CT revealed a suspicious pericardial lesion for which the patient was referred to our centre. The novelty of this case resides in the fact that by tissue characterization, cardiac magnetic resonance imaging allowed the determination that the lesion corresponded to brown fat, a reassuring finding with important impact on management, because the presence of pericardial metastasis would have disqualified this patient for curative resection of her cancer recurrence.
ISSN:0828-282X
1916-7075
DOI:10.1016/j.cjca.2015.10.009