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Assessing Urinary Tract Junction Obstruction Defects by Methylene Blue Dye Injection

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Published on: October 12, 2017

Vesicovaginal reflux mimicking obstructive hydrocolpos.

Emma M Snyder¹, Rechelle A Nguyen, Keli J Young

¹Department of Radiology, Nationwide Children's Hospital, 700 Children's Dr, Columbus, Ohio 43205, USA.

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine

|November 22, 2007

Summary

Vesicovaginal reflux can mimic obstructive hydrocolpos in children. Postvoid ultrasound is crucial for diagnosing this condition, which may stem from voiding dysfunction.

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Area of Science:

Pediatric Urology
Diagnostic Imaging
Genitourinary Imaging

Background:

Hydrocolpos, a fluid-filled vagina, is typically associated with obstructive causes.
Distinguishing between obstructive and non-obstructive causes is critical for appropriate management.

Observation:

This study reviewed four pediatric cases initially diagnosed with hydrocolpos based on sonographic findings.
Sonographic appearance mimicked obstructive hydrocolpos but resolved after voiding.

Findings:

Fluoroscopic studies revealed abnormal urethral morphology and vesicovaginal reflux in three patients.
No significant anatomical abnormalities were identified, suggesting a functional etiology.

Implications:

Vesicovaginal reflux can present sonographically identical to obstructive hydrocolpos.
Dysfunctional voiding may underlie this presentation.
Postvoid sonography is essential for accurate diagnosis and differentiating from obstructive causes.