A Diagnostic Challenge: Focal Fatty Liver or Metastasis?

A 12-year-old girl was referred to our radiology department to perform imaging of the contrast-enhanced thorax and abdomen via computed tomography. There was history of T-cell lymphoma managed with chemotherapy for 3 years. We detected a hypodense well-circumscribed lesion located at the perivascular region adjacent to the right portal vein (Figure 1, A). This hypodense lesion was not seen on the previous abdominal computed tomography examination (Figure 1, B). To differentiate the lesion, a magnetic resonance (MR) imaging procedure was performed.

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