Abstract |
A small number of pathologic entities such as Budd-
Chiari Syndrome, cirrhosis, focal nodu1ar hyperplasia,
and superior and inferior vena cava obstruction has
been reported to result in focal areas of increased
uptake of radiocolloid on the hepatoscintigram. We
recently studied a patient with focal accumulation of
Tc-99m-phytate at the inferior aspect of the liver, at
the junction of the right and left lobe. The superior
vena cava scintiangiogram was taken for the evaluation
of the superior vena cava obstruction and collateral
circulations. AS a result of superior vena caval
obstruction a considerable amount of blood flowed to
the liver through the anterior parietal and
periumblical venous channels. A certain fraction of
radiocolloid delivered by the rete mirabile perfused to
a localized area of the liver. This would explain the
hot spot around the porta hepatis in this case. |