J Korean Radiol Soc.  1995 Jan;32(1):145-152.

Patterns of Vascular Invasion of Intrahepatic Peripheral Cholangiocarcinoma Examined with Angiography and Angiographic CT

• Chang JC
• Cho HC
• Park WK

Abstract

PURPOSE
To evaluate the radiological patterns of vascular invasion in peripheral cholangiocarcinomas.
MATERIALS AND METHODS
Hepatic arteriography and portography in 20 cases with cholangiocarcinoma including 12 cases with anglographic CT were retrospectively analized.
RESULTS
The arteriography showed no arterioportal shunt, hypertrophy of tumor vessel, or tumor staining extending to central portion of the mass in all cases. However, doughnut shaped peripheral tumor staining was seen until late hepatogram phase in 12 cases and compensatory hyperperfusion around the mass was seen in six cases(eight cases if include arterial CT). Encasement of tumor vessel was seen in 12 cases, and hypertrophy of feeding vessel in nine cases. On portogrphy, the filling defect on segmental portal branch could be demonstrated only in 11 cases. Shape of the portal defect was tapered narrowing in six cases, abrupt narrowing in two cases but intraluminal nodular filling defect was not seen. Remainning three cases were difficult to define the shape. On seven cases of CT during arterial portography, three cases showed mass shaped defect and four showed segmental defect but three of them could demonstrate the partially preserved portal flow in defective portal area.
CONCLUSION
Hepatic arteriography in peripheral cholagiocarcinoma showed no evidence of hypertrophy of tumor vessels and tumor stain extending to central portion but peripheral staining on late hepatogram phase and compensatory hyperperfusion could be seen. Portal vein was more commonly involved through perivascular connective tissue invasion rather than by direct extension into the portal lumen.

MeSH Terms

Angiography*
Cholangiocarcinoma*
Connective Tissue
Hypertrophy
Portal Vein
Portography
Retrospective Studies