RecruitingPhase 2Drug trialContrast-Enhanced Ultrasound Imaging for Diagnosing Recurrent Renal Cell Carcinoma (RCC) Post AblationThis phase II trial studies how well contrast-enhanced ultrasound (CEUS) works for diagnosing patients with renal cell cancer (RCC) that has come back (recurrent) after an ablation. Diagnostic imaging, such as CEUS, may help find and monitor long term renal cell cancer recurrence following cryo or microwave ablation.