PMC8577479_01
Early arterial phase coronal contrast-enhanced CT shows low-attenuation of the lesion in the liver with slight, irregular peripheral rim-enhancement. Differential diagnosis includes metastases versus hepatic abscess.
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Follow up imaging of the abdomen with magnetic resonance imaging (MRI) showed numerous T2 hyperintense lesions throughout the liver, concerning for metastatic disease, although liver abscess could not be completely ruled out given her bacteremia (Fig. 1).
Coronal T2 weighted single-shot fast spine-echo (SSFSE) sequence shows slightly increased, heterogenous signal within this lesion, indicating a metastatic lesion. A hepatic abscess would show more marked, homogenous T2 hyperintensity.
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A subsequent MRI of the liver was obtained to further differentiate abscesses from metastatic lesions (Fig. 2).