J Korean Soc Radiol.  2011 Dec;65(6):613-618. 10.3348/jksr.2011.65.6.613.

A Correlation between Renal Anomalies and Vesicoureteral Reflux

• Kim SS
• Kim YT
• Kim IY
• Shin HC

• KMID: 2002931
• DOI: http://doi.org/10.3348/jksr.2011.65.6.613

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.

MeSH Terms

Child
Congenital Abnormalities
Constriction, Pathologic
Humans
Kidney
Kidney Diseases
Multicystic Dysplastic Kidney
Urogenital Abnormalities
Vesico-Ureteral Reflux
Congenital Abnormalities
Kidney
Kidney Diseases

Figure

• 

  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

• 

  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.

• 

  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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