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A Case of Ipsilateral Three Simultaneous Renal Cell Carcinomas with Different Histologic Types by Satoki Tanaka; Yusuke Goto; Ayumi Fujimoto; Takayuki Arai; Hiroaki Sato; Tomokazu Sazuka; Yusuke Imamura; Shinichi Sakamoto; Jun‐Ichiro Ikeda; Tomohiko Ichikawa is a Medicine article available to read on EtoBox.

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## Introduction Few reports have presented sporadic multifocal renal cell carcinomas of different histologic types occurring simultaneously in a single kidney. Here, we present a case of three ipsilateral renal cell carcinomas with three histologic types. ## Case presentation A 44‐year‐old man with end‐stage renal disease due to nephrosclerosis was referred to our hospital for an incidental renal tumor. Following the introduction of hemodialysis, enhanced computed tomography revealed a renal tumor suggestive of clear‐cell renal cell carcinoma with a cystic component. With a preoperative diagnosis of one renal tumor, he underwent laparoscopic radical nephrectomy. However, pathological examination revealed three renal cell carcinomas with three histological diagnoses: clear‐cell, papillary, and clear‐cell papillary renal cell carcinomas. ## Conclusion Preoperative imaging may not detect all synchronous ipsilateral multifocal renal cell carcinomas. Patients with severe renal function impairment may have synchronous multifocal renal cell carcinomas.

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Author

Satoki Tanaka; Yusuke Goto; Ayumi Fujimoto; Takayuki Arai; Hiroaki Sato; Tomokazu Sazuka; Yusuke Imamura; Shinichi Sakamoto; Jun‐Ichiro Ikeda; Tomohiko Ichikawa

Publisher

Wiley

Published

2023

Language

EN

Field

Medicine (Health Sciences)