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Kim, Kim, Kim, and Shin: A Correlation between Renal Anomalies and Vesicoureteral Reflux
Pediatric Radiology
Case Report

Journal of the Korean Society of Radiology 2011; 65(6): 613-618.

Published online: 31 December 2011

DOI: https://doi.org/10.3348/jksr.2011.65.6.613

A Correlation between Renal Anomalies and Vesicoureteral Reflux

Seung Soo Kim, MD, Young Tong Kim, MD, Il Young Kim, MD, Hyeong Cheol Shin, MD

Department of Radiology, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan, Korea.

Corresponding author: Young Tong Kim, MD. Department of Radiology, Soonchunhyang University College of Medicine, 8 Soonchunhyang 2-gil, Dongnam-gu, Cheonan 330-721, Korea. Tel. 82-41-570-3515, Fax. 82-41-579-9026, ytokim@schca.ac.kr

Received 1 January 2011       Accepted 8 August 2011

Copyright © 2011 The Korean Society of Radiology

Abstract

Purpose

To investigate the frequency of vesicoureteral reflux (VUR) in children with renal anomalies aevaluate the correlation between renal anomalies and VUR.

Materials and Methods

Eighty-one children (1 day-8 years) with renalanomalies underwent voiding cystourethrogram between 2006 and 2009 were reviewed. This study included ureteropelvic junction stenosis (n = 32), ureteropelvic duplication (n = 20), multicystic dysplastic kidney (n = 12), fusion anomaly (n = 11), renal agenesis (n = 3), unilateral renal hypoplasia (n = 2), and ectopic kidney (n = 1). The frequency, grade, and location of VUR were evaluated. The grade of VUR according to age and anomaly type was statistically analyzed, and the patients with VUR were followed.

Results

The VUR was present in 14 (17.3%); ipsilateral VUR was present in 8 (57.1%), bilateral VUR in 4 (28.6%), and contralateral VUR in 2 (14.2%). VUR was detected in 9 patients under the age of one. There was no statistical correlation between VUR grade and either age or anomaly type of the nine patients showed continuous VUR on up.

Conclusion

The frequency of VUR in children with renal anomalies was 17.3%. VUR was most frequently detected in children under the age of one, and VUR grade was not related to age and anomaly type.

Keywords: Vesico-Ureteral Reflux, Genitourinary Abnormalities, Children

Figures and Tables

Fig. 1

Congenital renal hypoplasia of the right kidney with right vesicoureteral reflux grade 4 in a 1-month-old boy.

A. Anterior view of the Tc-99 m-DMSA renal scan shows decreased activity of right kidney (arrow).
B. Voiding cystourethrography shows the grade 4 vesicoureteral reflux in the right kidney.
Note.-DMSA = dimercaptosuccinic acid
jksr-65-613-g001
Fig. 2

A neonate with right multicystic dysplastic kidney and left vesicoureteral reflux grade 1.

A. Coronal reconstructed CT image shows several cysts in right renal fossa (arrowhead).
B. Voiding cystourethrography after 4 days reveals grade 1 vesicoureteral reflux (arrow) in contralateral kidney.
jksr-65-613-g002
Fig. 3

A 8-year-old girl with bilateral ureteropelvic duplication and left vesicoureteral reflux grade 1.

A. Coronal MIP CT image shows duplication of both collecting system.
B. Voiding cystourethrography after 1 month demonstrates grade 1 left vesicoureteral reflux (arrowhead).
Note.-MIP = Maximum Intensity Projection
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Table 1

Frequency and Grade of VUR in Children with Renal Anomalies

jksr-65-613-i001

Note.-UPJ = ureteropelvic junction, VUR = vesicoureteral reflux

Table 2

Frequency and Grade of VUR according to Age

jksr-65-613-i002

Note.-VUR = vesicoureteral reflux, d = day, m = month, y = year

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