Iliac venous outflow obstruction has an important role in the ... A slit-like narrowing of the lumen of a vein, even with no alteration in cross-sectional area, may increase resistance to flow.

The IVC is formed by the merging of the right and left common iliac veins. These veins come together ... Conditions involving the IVC usually involve an obstruction (blockage) and may be referred ...

In the presence of combined iliac vein obstruction and superficial or deep reflux, therefore, the emerging course of treatment is primarily to correct the obstructive component. When significant ...