A Case of Type 1 Papillary Renal Cell Cancer with Pelvic Tumor Thrombus Masquerading as Urothelial Cancer with Review of Literature

摘要

Background: Adult renal tumors vary from renal cell carcinoma (RCC) to upper tract urothelial cancer (UTUC). Tumor characteristics such as renal vein and inferior vena cava tumor thrombus are usually seen with RCC, but tumor thrombus into pelvicaliceal system (PCS) is a rare entity in RCC. At present only 11 cases have been reported in the literature.