There is evidence that the patency of one large hepatic vein or the development of large venous collaterals probably explain the absence of clinical manifestations. About 2 in 10 patients seen at ...

Portal-vein thrombosis occurs in 20-30% of cases ... a single occasion in the setting of the radiology department, with hepatic venography, transjugular liver biopsy, retrograde CO 2 portography ...