<prompt> In Budd-Chiari syndrome there is obstruction to :Inferior vena cavaHepatic aeryLarger hepatic veinsPoal vein  <response>: Budd-Chiari syndrome results from obstruction to the hepatic veins. Vaso-occlusive thrombosis occurs in hepatic vein - spreads to CL hepatic veins - then in IVC Thrombus formation in hepatic veins - Backward pressure - centrilobular necrosis formation 