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Fig. 5B 32-year-old man with liver abscess in right lobe that is
inducing sectorial wedge-shaped transient hepatic intensity difference. Axial
gradient-echo T1-weighted gadolinium-enhanced arterial phase MR image (146/2)
shows sectorial arterial phenomenon (arrowhead) in right hepatic lobe
due to portal hypoperfusion secondary to portal branch thrombosis
(arrow) induced by abscess.