ISSN ONLINE: 2558-815X
ISSN PRINT: 1584-9244
ISSN-L: 1584-9244

Extrahepatic blood supply to hepatocellular carcinoma – a pictorial essay



Transarterial chemoembolization is a standard locoregional therapy for intermediate stage hepatocellular carcinoma. The tumour is typically supplied by the hepatic arteries, however, extrahepatic collateral arteries may significantly contribute parasitic blood supply to the tumour. Large and exophytic tumour, subcapsular location, direct invasion and adhesion to adjacent organs, hepatic artery dissection, stenosis and occlusion resulting from multiple embolizations are risk factors of extrahepatic collateral arteries. Understanding the prevalence and prediction of these parasitic supplies on pre-procedural imaging is of utmost importance for optimizing technical and clinical outcomes.

Keywords: transarterial chemoembolization, parasitic supply, extrahepatic collateral.

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Address for correspondence:
Le Trong Binh
Department of Radiology, Hue University of Medicine and Pharmacy, Hue University, Vietnam
Address: 06 Ngo Quyen, Hue city, Vietnam
Email:,; Phone +84 905 215 096


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Huyen TNHH, Hoang AD, Le TK, Nguyen DH, Phung H, Trinh HC, Le TB. Extrahepatic blood supply to hepatocellular carcinoma – a pictorial essay. Arch Balk Med Union. 2020;55(3):462-469.