Song HF, Liang L, Liu YB, Xiao B, Hu WG, Li JX. Jackstone in the renal calyx: A rare case report. World J Clin Cases 2023; 11(23): 5554-5558 [PMID: 37637701 DOI: 10.12998/wjcc.v11.i23.5554]
Corresponding Author of This Article
Jian-Xing Li, MD, Director, Doctor, Professor, Surgeon, Department of Urology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, No. 168 Litang Road, Changping District, Beijing 102218, China. lijianxing2015@163.com
Research Domain of This Article
Urology & Nephrology
Article-Type of This Article
Case Report
Open-Access Policy of This Article
This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (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: http://creativecommons.org/licenses/by-nc/4.0/
World J Clin Cases. Aug 16, 2023; 11(23): 5554-5558 Published online Aug 16, 2023. doi: 10.12998/wjcc.v11.i23.5554
Jackstone in the renal calyx: A rare case report
Hai-Feng Song, Lei Liang, Yu-Bao Liu, Bo Xiao, Wei-Guo Hu, Jian-Xing Li
Hai-Feng Song, Lei Liang, Yu-Bao Liu, Bo Xiao, Wei-Guo Hu, Jian-Xing Li, Department of Urology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
Author contributions: Song HF and Liang L contributed to manuscript writing and editing, and data collection; Xiao B and Hu WG revised the manuscript; Liu YB and Li JX performed the patient’s surgery and made contributions to supervision; all authors have read and approved the final manuscript.
Informed consent statement: Informed written consent was obtained from the patient for the publication of this report and any accompanying images.
Conflict-of-interest statement: The authors declare that they have no conflict of interest to disclose.
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: Jian-Xing Li, MD, Director, Doctor, Professor, Surgeon, Department of Urology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, No. 168 Litang Road, Changping District, Beijing 102218, China. lijianxing2015@163.com
Received: April 10, 2023 Peer-review started: April 10, 2023 First decision: June 12, 2023 Revised: June 25, 2023 Accepted: July 25, 2023 Article in press: July 25, 2023 Published online: August 16, 2023 Processing time: 128 Days and 5 Hours
Abstract
BACKGROUND
Jackstone is a rare entity of calculi in urinary tracts and has the characteristic appearance resembling toy jacks. They are nearly always reported to occur in the urinary bladder, we first report a rare case of jackstone located in the obstructed renal calyx.
CASE SUMMARY
We report a 46-year-old man presenting with intermittent, painless gross hematuria and left flank pain. Urinary computed tomography revealed staghorn stones and secondary hydronephrosis. A jackstone with radiating branches was found in one of the dilated renal calyx. Percutaneous nephrolithotomy was performed and endoscopic images were recorded during the operation. Postoperative stone composition analysis revealed it as calcium oxalate monohydrate stones.
CONCLUSION
Jackstones can occur in the renal collecting system besides the bladder. The unique appearance and imaging manifestations are the most important factors in the diagnosis of jackstones, and further exploration of the formation mechanism is required.
Core Tip: As a rare entity, jackstone with the characteristic appearance resembling toy jacks is usually found in the urinary bladder. This study discusses a rare case of a jackstone in a hydronephrotic renal calyx which had never been described before. Jackstones are commonly composed of calcium oxalate monohydrate or calcium oxalate dihydrate. The exact pathophysiology of jackstone development remains poorly understood. Outflow obstruction may be the most common cause. Thus, when removing the stones, the obstruction should also be evaluated and treated to avoid recurrence.
