What is iliocaval thrombosis?

Iliocaval thrombosis refers to the formation of a blood clot in the iliac veins or the inferior vena cava, which are major veins responsible for returning blood from the lower body to the heart. This condition can lead to complications such as deep vein thrombosis (DVT) or pulmonary embolism if the clot dislodges and travels to the lungs. Symptoms may include swelling, pain, and discoloration in the affected leg. Iliocaval thrombosis can result from various factors, including prolonged immobility, certain medical conditions, or trauma.