What are the common causes of caval thrombosis in deep venous thrombosis (DVT)?

Updated: Jun 05, 2019
  • Author: Kaushal (Kevin) Patel, MD; Chief Editor: Barry E Brenner, MD, PhD, FACEP  more...
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Thrombosis of the inferior vena cava is a rare occurrence and is an unusual result of leg deep venous thrombosis unless an inferior vena cava filter is present and stops a large embolus in the cava, resulting in obstruction and extension of thrombosis. Common causes of caval thrombosis include tumors involving the kidney or liver, tumors invading the inferior vena cava, compression of the inferior vena cava by extrinsic mass, and retroperitoneal fibrosis. [65, 66]

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