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Journal of Ultrasound in Medicine, Vol 18, Issue 7 463-467, Copyright © 1999 by American Institute of Ultrasound in Medicine

JOURNAL ARTICLE

Accuracy of prenatal ultrasonographic diagnosis of duplex renal system

P. Vergani, P. Ceruti, A. Locatelli, E. Mariani, G. Paterlini, C. Zorloni and A. Ghidini
Department of Obstetrics and Gynecology, Istituto di Scienze Biomediche San Gerardo, Monza, Italy.

Duplex renal system is a rare congenital anomaly of the urinary tract that can be diagnosed in utero. The purpose of this study was to establish the optimal diagnostic criteria for fetal renal duplication in a population undergoing prenatal sonographic screening. Between January 1989 and June 1997 we found 11 cases of duplex renal system, 10 of which were correctly identified in utero at a median gestational age of 28 weeks (range, 20 to 38 weeks), and one of which was a false-negative diagnosis. Prenatal diagnosis of duplex renal system can be made in utero during the second half of pregnancy in the presence of two or more of the following signs: hydronephrosis limited to one pole in a kidney with two separate, noncommunicating renal pelves; ipsilateral megaureter; and ureterocele.


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W. Sepulveda, C. Campana, E. Carstens, and J. Rodriguez
Prenatal Sonographic Diagnosis of Bilateral Ureteroceles: The Pseudoseptated Fetal Bladder
J. Ultrasound Med., August 1, 2003; 22(8): 841 - 844.
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