Transient Moderate Bilateral Maternal Hydronephrosis at 7 Weeks Gestation Resolving Imzmediately After Micturition

Abstract

A case in which moderate bilateral maternal hydronephrosis was documented sonographi cally at 7 weeks0 gestatio, and resolved spontane ously immediately after micturition, is presented. This occurrences emphasizes the importance of obtaining an empty bladder before renal sono graphic examination to avid false positive diag nosis of pathologic or pregnancy-associated uri nary tract dilatation.

Keywords

transient maternal hydronephrosis pregnancy micturitioin ultrasound

References

1. Amis ES , Cronan JJ , Pfister RC , Yoder IC . Ultrasonic inac curacies in diagnosing renal obstruction. LUrology 1982;29: 101-105.

2. Peake SL , Roxburgh HB , Langlois SLP . Ultrasonic assess ment of hvdronephrosis of pregnancy. Radiology 1983;146: 167-170.

3. Graif M , Kessler A , Hart S . et al. Renal pvelectasis in preg nancv: correlative evaluation of fetal and maternal collecting sxstems. Am J Obstet Gynecol 1983; 167:1304-1306.