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Updated: May 7, 2026

Assessing Urinary Tract Junction Obstruction Defects by Methylene Blue Dye Injection
Published on: October 12, 2017
Complete pelviureteric junction obstruction following a diuretic renal scan
R Kataria1, S Gupta, S Agarwala
1Department of Pediatric Surgery, All India, Institute of Medical Sciences, Ansari Nagar, 110029, New Delhi, India.
Abstract:
A 13-day-old neonate with a single functioning, hydronephrotic kidney developed complete pelviureteric junction (PUJ) obstruction and anuria following a diuretic radionuclide renal scan. Urgent pyeloplasty resulted in a favourable outcome. Possible dynamics of the obstruction are discussed. Monitoring urine output after diuretic renal scans, especially in infants with a single functioning kidney and PUJ obstruction, is of paramount importance.
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