Surgical Outcome of Renal Cell Carcinoma with Tumor Thrombus Extension into Inferior Vena Cava and Right Atrium (Beating Heart Removal of Level 4 Thrombus): A Challenging Scenario. jkcvhl [Internet]. 2020 Jul. 31 [cited 2026 Apr. 29];7(2):11-7. Available from: https://mail.jkcvhl.com/~jkcvhlco/index.php/jkcvhl/article/view/149