<qa>  What is the name of the new AJCC TNM classification system?The outcome prediction for RCC remains controversial, and although many parameters have been tested for prognostic significance, only a few have achieved widespread acceptance in clinical practice. Currently, pathologic stage T stage, lymph node status N stage and histologic grade represent the main prognostic variables in the patients with RCC and venous tumor thrombus. Accordingly, the American Joint Committee on Cancer AJCC TNM classification is regularly revised and, recently, a new 2009 AJCC TNM stage classification system has been proposed. 