Diagnosis of unilateral single system ectopic ureter in girls in the era of magnetic resonance urography (MRU)
Afr. j. urol. (Online)
;
10(4): 264-268, 2004.
Article
in English
| AIM
| ID: biblio-1257964
ABSTRACT
Objective:
The ectopic ureter frequently drains an ectopic dysplastic or hypoplastic kidney. The present study aims at defining the role of MRU in establishing the diagnosis of this anomaly. Patients andMethods:
Between February 1996 and March 2000; 11 girls presented or were referred to our department for management of urinary incontinence. Their age at presentation ranged from 4-9 years (mean 6.5 years). Radiological work up included abdominal ultrasound (US); excretory urogram (IVU); voiding cystourethrography (VCUG); 99 m technetium-dimercaptosuccinic acid (99m Tc-DMSA) renal scan; enhanced spiral computed tomography (CT) and magnetic resonance urography (MRU).Results:
Ultrasound showed evidence of a solitary kidney with failure to visualize a contralateral kidney in 7/11 patients. In the remaining 4 patients (36.4); US revealed a pelvic kidney in two and a pelvic cystic mass in another two patients. IVU revealed only one functioning renal unit in all cases. None of the patients showed vesicoureteral reflux on VCUG. On 99m Tc-DMSA ; a single kidney was seen in 9/11 patients and ectopic pelvic kidneys with normal contralateral kidneys in 2/11 patients. The 7 patients; in whom US and 99m Tc-DMSA scan had failed to localize the kidney; underwent CT scanning which visualized a pelvic hypoplastic kidney with a normal contralateral kidney in 2/7 patients. The remaining 5 patients underwent MRU that disclosed a normal kidney with a contralateral lumbar hypoplastic kidney in one and a pelvic ectopic kidney in four. The patients were managed by nephrectomy (n=9) and ureteroneocystostomy (n=2).Conclusions:
A single system ectopic ureter should be suspected in all girls with continuous urinary dribbling after the age of successful toilet training. With the inclusion of MRU into radiological workup; dysplastic or hypoplastic kidneys can be accurately localized. MRU is indicated for the diagnosis and for therapeutic planning in such cases
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Index:
AIM (Africa)
Main subject:
Ultrasonic Therapy
/
Urinary Incontinence
/
Urography
Language:
English
Journal:
Afr. j. urol. (Online)
Year:
2004
Type:
Article
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