Residual Leiomyosarcoma in the Inferior Vena Cava after Thrombectomy under Cardiopulmonary Bypass: The Role of Intraoperative Ultrasonography | Abstract Continue ReadingResidual Leiomyosarcoma in the Inferior Vena Cava after Thrombectomy under Cardiopulmonary Bypass: The Role of Intraoperative Ultrasonography | Abstract