title: Renal cell carcinoma growing into the renal pelvis and mimicking transitional cell carcinoma: A case report and literature review.
abstract: Renal cell carcinoma (RCC) originated from parenchyma and the majority of malignancies originating in the renal pelvis are transitional cell carcinoma (TCC). In the present study, a rare case of RCC growing into the renal pelvis and mimicking TCC in medical imaging is reported. The preoperative differentiation between RCC and TCC is important in order to identify the type of surgical treatment required: Nephrectomy or ureteronephrectomy. The role of ureteroscopy and biopsy is emphasized in the accurate preoperative diagnosis of a renal pelvic mass. Thus, the present study provided fundamental evidence for the pathogenesis of RCC with pelvic extension and challenged the present tumor node metastasis staging system of RCC.
authors: Department of Graduate Medicine, Anhui Medical University, Hefei, Anhui 230032, P.R. China ; Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China ; The Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen, Guangdong 518036, P.R. China.
authors: Yifan
authors: Y
authors: Li
authors: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China ; The Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen, Guangdong 518036, P.R. China.
authors: Y U
authors: YU
authors: Ding
authors: Department of Graduate Medicine, Anhui Medical University, Hefei, Anhui 230032, P.R. China ; Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China ; The Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen, Guangdong 518036, P.R. China.
authors: Duqun
authors: D
authors: Chen
authors: Department of Graduate Medicine, Anhui Medical University, Hefei, Anhui 230032, P.R. China ; Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China ; The Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen, Guangdong 518036, P.R. China.
authors: Zuhu
authors: Z
authors: Yu
authors: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China ; The Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen, Guangdong 518036, P.R. China.
authors: Yaoting
authors: Y
authors: Gui
authors: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China ; The Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen, Guangdong 518036, P.R. China.
authors: Shangqi
authors: S
authors: Yang
authors: Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China ; The Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Peking University Shenzhen Hospital, Institute of Urology of Shenzhen PKU-HKUST Medical Center, Shenzhen, Guangdong 518036, P.R. China.
authors: Yongqing
authors: Y
authors: Lai
keywords: computed tomography; renal cell carcinoma; transitional cell carcinoma; ureteroscopy