Non-clear cell histology in patients with metastatic RCC as a prognostic indicator in the targeted therapy era.

454 Background: The role of targeted therapy (TT) in metastatic renal cell carcinoma (mRCC) having non-clear cell histology (non-ccRCC) is still being defined. We sought to examine the factors associated with survival outcomes in patients presenting with various histological subtypes in the TT era. METHODS The UCLA Kidney Cancer Program database… (More)