Focal Fat Spared Area in the Liver Masquerading as Hepatic Metastasis on F-18 FDG PET Imaging

Fatty infiltration of the liver is not an uncommon imaging finding with modalities like ultrasound, computed tomography (CT), and magnetic resonance imaging (MRI). However, when it manifests as a focal fatty change or areas of focal fat sparing, an appearance of a mass lesion is produced. Focal trac...

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Bibliographic Details
Published in:Clinical nuclear medicine 2008-11, Vol.33 (11), p.802-805
Main Authors: Purandare, N C, Rangarajan, Venkatesh, Rajnish, Anshu, Shah, Sneha, Arora, Abhishek, Pathak, Sujata
Format: Article
Language:English
Subjects:
Biopsy
Colorectal Neoplasms - drug therapy
Colorectal Neoplasms - pathology
Colorectal Neoplasms - surgery
False Positive Reactions
Fluorodeoxyglucose F18 - pharmacokinetics
Humans
Intra-Abdominal Fat - diagnostic imaging
Intra-Abdominal Fat - pathology
Liver Neoplasms - diagnostic imaging
Liver Neoplasms - secondary
Male
Middle Aged
Positron-Emission Tomography
Tomography, X-Ray Computed
Whole Body Imaging
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Summary:Fatty infiltration of the liver is not an uncommon imaging finding with modalities like ultrasound, computed tomography (CT), and magnetic resonance imaging (MRI). However, when it manifests as a focal fatty change or areas of focal fat sparing, an appearance of a mass lesion is produced. Focal tracer uptake seen in the liver on F-18 fluorodeoxyglucose-positron emission tomography (FDG-PET) when it is performed as a part of a metastatic work up for colorectal cancer is highly suggestive of hepatic metastasis. We present an unusual finding of focal FDG uptake in a fat-spared area in the liver masquerading as a hepatic metastasis.
ISSN:0363-9762
1536-0229
DOI:10.1097/RLU.0b013e318187ef32