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Updated: Aug 19, 2026

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Assessing Urinary Tract Junction Obstruction Defects by Methylene Blue Dye Injection
Published on: October 12, 2017
Early ultrasonic appearance of fetal bladder outlet obstruction
1Department of Obstetrics and Gynecology, Bridgeport Hospital, CT 06610.
American Journal of Obstetrics and Gynecology
|March 1, 1989
Abstract:
A case in which fetal ultrasonography detected increased fetal bladder size at 11 weeks' gestation is reported. A subsequent scan at 13 weeks' gestation showed increased fetal bladder size along with bilateral hydronephrosis, which confirmed the diagnosis of fetal bladder outlet obstruction.
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