Renal Vein Ostium Wall Invasion of Renal Cell Carcinoma With an Inferior Vena Cava Tumor Thrombus: Prediction by Renal and Vena Caval Vein Diameters and Prognostic Significance

Preoperative imaging measurements of renal vein and inferior vena cava diameter can accurately predict renal vein ostium wall invasion. Renal vein ostium wall invasion is an independent prognostic marker that is associated with a higher risk of recurrence and decreased specific survival.