The single ectopic ureter and the dysplastic kidney

Area of Science:

• Pediatric Urology
• Nephrology

Background:

• Ectopic ureters, often arising from non-concentrating kidneys, present unique diagnostic challenges in children.
• Symptoms vary widely, including persistent wetting, abdominal distension, urinary infections, and chronic urinary retention.

Purpose of the Study:

• To describe the clinical presentation, diagnostic methods, and treatment of pediatric ectopic ureters associated with non-concentrating kidneys.
• To highlight key diagnostic indicators and management strategies for this condition.

Main Methods:

• Review of eight pediatric cases with single ectopic ureters and non-concentrating kidneys.
• Diagnostic techniques included intravenous urography, cystourethrography, and endoscopic examination of the urethra/vagina.
• Identification of ureteric orifices and associated anomalies like extravesical ureteroceles.

Main Results:

• Diverse presentations observed, including persistent wetting in girls and abdominal distension in neonates.
• Intravenous urography revealing non-concentrating kidneys was a key diagnostic clue.
• Cystourethrography and endoscopic evaluations were crucial for identifying the ectopic ureteric orifice, especially in boys with genital tract involvement.

Conclusions:

• Ectopic ureters associated with non-concentrating kidneys require a high index of suspicion for diagnosis.
• A combination of imaging and endoscopic procedures is essential for accurate identification.
• Nephroureterectomy remains the primary treatment modality for this condition.