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Assessing Urinary Tract Junction Obstruction Defects by Methylene Blue Dye Injection

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Published on: October 12, 2017

Intermittent ureterovesical junction obstruction in children.

Luis Botelho¹, Jose A Rincon, Hiep T Nguyen

¹Department of Urology, Children's Hospital Boston, Boston, MA 02115, USA.

Journal of Pediatric Urology

|March 8, 2011

Summary

Intermittent ureterovesical junction obstruction, a previously undescribed condition, presents with flank pain and nausea. This case highlights the importance of recognizing this rare cause of hydroureteronephrosis.

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Area of Science:

Urology
Nephrology
Diagnostic Imaging

Background:

Intermittent ureteropelvic junction obstruction is a known clinical entity.
Obstruction at the ureterovesical junction typically presents as a constant blockage.

Observation:

A case of intermittent ureterovesical junction obstruction was identified.
The condition presented with recurrent flank and abdominal pain, nausea, and vomiting.

Findings:

Ultrasonography revealed intermittent hydroureteronephrosis.
The intermittent nature of the obstruction was a key diagnostic feature.

Implications:

This case expands the understanding of ureterovesical junction obstruction.
Recognizing this intermittent form is crucial for accurate diagnosis and management of related symptoms.