Methodology
Diagnosis of an ectopic ureter in a girl by differential urine collection after administration of desmopressin acetate
A Thimm, M G Coulthard
Children's Kidney
Unit, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UK
Correspondence to: Dr Coulthard email: malcolm.coulthard@ncl.ac.uk
Accepted 15 May
2000
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Introduction |
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Urinary incontinence in girls is very common, usually presenting as intermittent, frequent urinary dribbling due to detrusor instability. Rarely, continuous urinary dribbling is caused by a dysplastic, poorly functioning moiety of a duplex kidney, or a unilateral dysplastic kidney draining into a ureter that exits ectopically to the vagina or distal urethra.1-4 Typically, the diagnosis is made after a long delay.2-4 This is partly because the dribbling pattern is not always easy to ascertain,3 but mainly because it may be difficult to confirm the diagnosis preoperatively by examination of the genitalia,2 4 or using various imaging techniques.1-4 We present a girl in whom the diagnosis was confirmed by chemical analysis of urine collected after the administration of desmopressin acetate.
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Patient, method, and results |
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An antenatal ultrasound diagnosis was made of a female infant with
a normal left kidney, but a duplex right kidney with a dilated,
dysplastic upper moiety. Postnatally, her renal function was normal,
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