What are developmental venous anomalies? A developmental venous anomaly (DVA) is a problem with the way small veins are arranged. They may look like the spokes of a wheel. The veins drain into a ...

An inferior vena cava (IVC) filter is a small device that can stop blood clots from going up into the lungs. The inferior vena cava is a large vein in the middle of your body. The device is put in ...