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The British Journal of Radiology, Vol 73, Issue 871 727-732, Copyright © 2000 by British Institute of Radiology

ARTICLES

The aetiology of non-tumorous enhancement in the hepatic hilum shown on CT hepatic arteriography

T Yamagami, Y Arai, Y Inaba, K Matsueda, Y Takeuchi and T Nishimura
Department of Diagnostic Radiology, Aichi Cancer Center, Japan.

The causes of non-tumorous abnormalities in the hepatic hilum seen on CT hepatic arteriography were investigated. 13 patients with non-tumorous defects of portal perfusion in the hepatic hilum on CT arterial portography underwent both CT hepatic arteriography from the common hepatic artery and CT obtained during proper hepatic arteriography. The findings of non-tumorous portal defects on these two angiographic studies using helical CT were compared. In the 13 patients, 14 non-tumorous defects of portal perfusion in the hepatic hilum on CT arterial portography were detected as enhanced areas in 10 regions (dorsum of segment IV, 7/10; dorsum of the lateral segment, 3/4) on CT hepatic arteriography via the common hepatic artery, but none were enhanced on CT obtained during proper hepatic arteriography. In conclusion, the main cause of non-tumorous enhancement in the hepatic hilum seen on CT hepatic arteriography is non-portal direct inflow via the parabiliary venous system.




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