Passive hepatic congestion is caused by stasis of blood within the liver
parenchyma due to compromise of hepatic venous drainage. It is a common
complication of congestive heart failure and constrictive pericarditis,
wherein elevated central venous pressure is directly transmitted from the
right atrium to the hepatic veins because of their close anatomic relationship
(Fig. 1). The liver becomes tensely swollen as the hepatic sinusoids dilate
and engorge to accommodate the backflow of blood. A variety of structural
and functional hepatic derangements develop that have distinctive appearances
on sonograms, CT scans, and MR images
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