[Inoperable cancer of the left hepatic duct--CT criterion and relation to angiography findings].

In the diagnosis of pancreaticobiliary tumors, computerized tomography is becoming the routine examination method. Occasionally, due to the complexity of anatomical factors, diagnosis of tumor origin and operability is difficult. Vascular invasion, as an indicator of the inoperability of a cystic duct carcinoma, is demonstrated angiographically and compared with the CT finding of a preaortic soft-tissue shadow.