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Physical Examination finding in inferior vena cava thrombosis
Consider IVC thrombosis if you ever see vertically oriented, dilated abdominal wall veins, or dilated veins on the back. As opposed to abdominal wall veins that radiate out from the umbilicus in patients with cirrhosis-known as caput medusae.
Etiologies include hepatic tumors abutting the IVC, renal cell tumors, open abdominal surgery, catheter related, IVC filter-related.