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CC BY-NC-ND 4.0 · World J Nucl Med 2014; 13(01): 62-63
DOI: 10.4103/1450-1147.138577
Case report

Persistent High Grade Flurodeoxyglucose Uptake in Lipomatous Hypertrophy of the Interatrial Septum on Dual Time Point Imaging and with Ambient Warming

K Kamaleshwaran
Department of Nuclear Medicine, Kovai Medical Centre and Hospital, Coimbatore, Tamil Nadu, India
,
N Sudhakar
1   Department of Medical Oncology, Kovai Medical Centre and Hospital, Coimbatore, Tamil Nadu, India
,
D Shibu
Department of Nuclear Medicine, Kovai Medical Centre and Hospital, Coimbatore, Tamil Nadu, India
,
E R R Kurup
Department of Nuclear Medicine, Kovai Medical Centre and Hospital, Coimbatore, Tamil Nadu, India
,
Ajit Shinto
Department of Nuclear Medicine, Kovai Medical Centre and Hospital, Coimbatore, Tamil Nadu, India
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Lipomatous hypertrophy of the interatrial septum (LHIS) is a relatively uncommon disorder of the heart characterized by benign fatty infiltration of the interatrial septum that usually spares the fossa ovalis. LHIS showing flurodeoxyglucose uptake has been reported, and is presumed to be due to activated brown adipose tissue (BAT). We here report a case of a patient who had isolated mediastinal uptake in interatrial septum, mimicking metastasis. Rescanning with external warming to deactivate BAT and a delayed time point image was done, which showed persistent and progressively increasing metabolic uptake respectively, suggesting that LHIS uptake might be unrelated to activated BAT or inflammation.

Keywords

Brown adipose tissue - flurodeoxyglucose positron emission tomography computed tomography - lipomatous hypertrophy


Publication History

Article published online:
23 May 2022

© 2014. Sociedade Brasileira de Neurocirurgia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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