A case report on the novel application of CRRT in renal vein shunting surgery.

Background: Giant abdominal tumors exceeding 10 cm in diameter are rare and often involve several critical organs and vascular structures. The primary treatment is surgical excision, which presents substantial challenges, including organ preservation, hemorrhage control, and intact tumor removal.

Case Summary: We present a 46-year-old male with a massive abdominal mass invading the right kidney and inferior vena cava (IVC).