Case Report
Copyright ©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jul 6, 2024; 12(19): 4010-4015
Published online Jul 6, 2024. doi: 10.12998/wjcc.v12.i19.4010
Renal anastomosing hemangioma following partial nephrectomy for renal cell carcinoma: A case report
Juan Chen, Di-Ming Cai
Juan Chen, Di-Ming Cai, Department of Medical Ultrasound, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
Author contributions: Chen J contributed to the data collection and manuscript writing; Cai DM contributed to the manuscript revision and supervision; and all the authors approved the final manuscript.
Informed consent statement: Informed written consent was obtained from the patient for publication of this report and any accompanying images.
Conflict-of-interest statement: The authors declare that they have no conflict of interest.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Di-Ming Cai, Doctor, Professor, Department of Medical Ultrasound, West China Hospital, Sichuan University, No. 37 Guoxue Alley, Chengdu 610041, Sichuan Province, China. doccai@163.com
Received: March 8, 2024
Revised: April 25, 2024
Accepted: May 10, 2024
Published online: July 6, 2024
Processing time: 113 Days and 1.6 Hours
Abstract
BACKGROUND

Renal anastomosing hemangioma (AH) is a rare benign vascular tumor characterized by unique histopathological features.

CASE SUMMARY

We report a highly unusual case of renal AH. A male patient had undergone partial nephrectomy for clear cell carcinoma of the kidney four years prior. A follow-up computed tomography scan in the third postoperative year revealed a new mass near the surgical site on the same side of the kidney, raising suspicions of tumor recurrence. However, the characteristics on contrast-enhanced magnetic resonance imaging and ultrasonography were more consistent with those of a benign lesion. The patient strongly insisted on undergoing surgery due to concerns about the possibility of renal cancer recurrence. Postoperative pathology confirmed the diagnosis of renal AH.

CONCLUSION

This case report presents the imaging features of a patient with rare renal AH and a history of renal clear cell carcinoma, providing broader insights into the differential diagnosis of new lesions after surgery for renal cell carcinoma.

Keywords: Anastomosing hemangioma; Kidney; Ultrasound; Imaging; Case report

Core Tip: Renal anastomosing hemangioma (AH) is a rare benign vascular tumor characterized by unique histopathological features. We reported a highly unusual case of renal AH, where the AH occurred secondarily in the remaining kidney tissue following a partial nephrectomy for renal clear cell carcinoma. This case report describes the imaging characteristics of a patient with rare renal AH and a history of renal clear cell carcinoma, including ultrasound, computed tomography, and magnetic resonance imaging. We hope that our case contributes to a broader understanding of the differential diagnosis of new lesions after nephrectomy for renal cell carcinoma.