Figure 1
Axial (a) and coronal (b) unenhanced CT of the upper abdomen shows a homogenous spontaneous hyperdense ovoid lesion of 3.2 cm (white arrow). The arterial (c) and venous (d) phase of the contrast enhanced CT shows no enhancement, resulting in hypodense appearance relative to the liver. Compression of the right portal vein (d, black arrow) is depicted. In addition, a segmental splenic infarction is seen (e, white arrow).
Figure 2
Axial (a) and coronal (b) fat-sat T2 and axial T1 (c) sequence show a lesion with a hyperintense periphery and a hypo-intense centre (white arrows). High signal intensity on the DWI (d) and low signal on ADC (e) is noted, confirming diffusion restrictive lesion (white arrows).
Figure 3
The arterial phase MRI shows this structure (partly visualised; black arrow) deriving from the right hepatic artery (white arrow).
Figure 4
On this DSA image, the black hollow arrow indicates occlusion of the right hepatic artery, and re-injection is denoted by the white arrow.
Figure 5
The axial (a) and sagittal (b) PET-CT shows avid FDG-uptake in a lesion in the rectum (white arrows).
Figure 6
Axial (a) and coronal (b) T2-weighted sequence of the lower pelvis, showing a iso-intense semi-circular, sessile mass in the middle 1/3 of the rectum (white arrows).