Abstract
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.
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