肝后下腔静脉前间隙是指位于肝背侧下腔静脉窝和下腔静脉(inferiorvenaeava,IVC)之间的一段相对少血管区,为一潜在性间隙。其起点为肝尾状叶背侧IVC的第1支肝短静脉,即右下肝静脉(inferiorrighthepaticvein,IRHV)的左侧,止点为肝右静脉及肝左静脉和肝中静脉共干间的间隙上缘(肝 Posterior Hepatic Inferior Vena The anterior gap refers to a relatively small area of ​​blood located between the dorsal inferior vena cava inferior vena cava and the inferior vena cava (IVC), a potential gap. The starting point is the left hepatic veins, the left hepatic vein (inferior left hepatic vein), located on the left side of the dorsal IVC of the caudate lobe with the junction of the right hepatic vein and the left hepatic vein and the middle hepatic vein Upper gap (liver