Figure 1
Initial evaluation with abdominal ultrasound showed a complex lesion with an hypoechogenic ill-defined area (arrow) and a more peripheral cystic component (*) in the right liver lobe.
Figure 2
Enhanced coronal (a) and axial (b) CT show a more peripheral sub-diaphragmatic non-enhancing hypodense lesion in the right lobe, with extra-hepatic extension (*) and a more central enhancing solid mass (arrow). Presence of peri-hepatic ascites and cardiophrenic adenomegaly (circle).
Figure 3
Coronal (a) and axial (b) 3D TSE sequence MR images show a mild hyperintense mass centred in right lobe, which shows progressively rim-like peripheral and central enhancement (arrows) at axial gadolinium-enhanced T1-weighted fat-saturated (c). Periferically, a more cystic component (*), with enhancing walls and a non-enhancing center, compatible with an hepatic abcess. Right pleural and peri-hepatic effusions are also seen (arrowhead).
Figure 4
Coronal (a) T2-weighted fat-saturated single shot turbo spin-echo MR image and axial (b) 3D TSE sequence show regression of both hiperinytense cystic (*), and mild hiperintense solid components (arrows), after 6 weeks flucloxacillin therapy.