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Focal hyperemia on RBC blood-flow imaging. A scintigraphic marker of arterioportal venous shunting in hepatic cavernous hemangiomas?

Dwamena, B.A.; Belcher, K.K.; Dasika, N.; Frey, K.A.

Clinical Nuclear Medicine 22(8): 542-545

1997

ISSN/ISBN: 0363-9762
PMID: 9262900
Document Number: 483596
Purpose: To investigate the significance of increased perfusion associated with some hepatic hemangiomata during radionuclide blood volume imaging. Methods: Immediate dynamic planar projections and delayed SPECT imaging of a hepatic lesion were obtained after the administration of Tc-99m-labeled RBC. Scintigraphic data were compared with X-ray CT, contrast angiography and postresection histopathology. Results: A surgically proven, cavernous hemangioma with typical findings on delayed radionuclide blood-pool imaging showed markedly increased perfusion by scintigraphy. This correlated with arterioportal venous shunting (AVPS) on contrast angiography. Conclusion: Increased perfusion on radionuclide blood-volume imaging of hepatic hemangiomata may be a scintigraphic marker of AVPS. This may serve to identify patients with increased risk for spontaneous rupture or may identify them for the development of portal hypertension.

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