Venous tumor thrombus consistency is not predictive of survival in patients with renal cell carcinoma: A retrospective study of 147 patients.

Objectives: To evaluate the prognostic role of venous tumor thrombus consistency in patients with renal cell carcinoma.

Methods: A retrospective evaluation of the data of patients with renal cell carcinoma and a tumor thrombosis submitted to surgery from 2000 to 2013 was carried out. Histological slides were revised by two uropathologists, blinded of the clinical outcome, to assess venous tumor thrombus consistency classified as solid venous tumor thrombus consistency or friable venous tumor thrombus consistency.