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1/14. Prenatal sonographic diagnosis of bladder outlet obstruction caused by a ureterocele associated with hydrocolpos and imperforate hymen.

    We report a case of prenatal bladder obstruction due to a single system ureterocele associated with hydrocolpos. Ultrasound at 22 weeks demonstrated an enlarged bladder. Serial scans showed progressive ipsilateral obstructive uropathy, contralateral hydronephrosis, and oligohydramnios. Neonatal endoscopic decompression and hymenotomy was performed with residual decreased ipsilateral renal function and dilation. Prenatal bladder obstruction may cause permanent renal damage.
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keywords = ureterocele
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2/14. In-utero treatment of fetal bladder-outlet obstruction by a ureterocele.

    Fetal bladder-outlet obstruction by ureteroceles is usually treated at birth. However, such obstruction may be detrimental to the health of the fetus and so in-utero correction is preferable. We describe the successful cytoscopy guided laser incision, with no complications, of a uterocele that was causing bladder-outlet obstruction in a fetus of 19 weeks and 6 days gestation.
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keywords = ureterocele
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3/14. Bladder outlet obstruction after operation for ureterocele.

    Two patients with ureterocele-induced bladder outlet obstruction are presented. In each instance, a broad-based diverticulum had developed in the floor of the bladder as a result of the muscular defect created by a simple ureterocele in one patient and an ectopic ureterocele in the other. This bladder diverticulum produced secondary obstruction of the bladder outlet during the act of voiding. urinary diversion in one patient had been carried out because of bladder outlet obstruction and was being seriously considered in the other patient because of upper tract deterioration. After the correct diagnosis was established, reconstruction of the muscular defect eliminated the obstruction and reestablished satisfactory bladder function. urinary diversion was thus prevented in one patient and undiversion accomplished in another, when the true obstructing nature of the bladder diverticulum was established and correct therapy instituted.
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ranking = 1.4
keywords = ureterocele
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4/14. Ultrasound-guided laser treatment for fetal bladder outlet obstruction resulting from ureterocele.

    In a case of severe bilateral hydronephrosis in a female fetus associated with ureterocele at 28 weeks, under local anesthetic, ultrasound-guided neodymium:yttrium-aluminum-garnet laser was used to perforate the ureterocele and successfully overcome the obstruction. There was no recurrence of obstruction, and renal function was normal postnatally.
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ranking = 1.2
keywords = ureterocele
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5/14. Inverted Y duplication of the ureter in association with ureterocele and bladder diverticulum.

    We report a case of inverted Y duplication of the ureter in association with an obstructing ectopic ureterocele and paraureteral diverticulum. Preoperative radiological studies demonstrated the ureterocele and diverticulum but they failed to show the duplex distal ureter. The duplicated section of ureter was excised and a Cohen reimplantation was performed. The presence of a large ureterocele obstructing the bladder neck, a diverticulum, failure of reflux into the ectopic segment and poor function of the affected kidney all contributed to the difficulties in establishing a preoperative diagnosis.
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ranking = 1.4
keywords = ureterocele
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6/14. An entirely endoscopic treatment for simple ureteroceles in nonduplicated systems: a preliminary report.

    A case is reported of a large ureterocele associated with a single collecting system. The ureterocele caused frequent urinary retention and it was treated successfully by a staged endoscopic procedure, consisting of complete transurethral resection of the ureterocele followed by perimeatal polytetrafluoroethylene (Teflon) paste injections to prevent subsequent vesicoureteral reflux. This new approach of a combination of 2 endoscopic techniques proved to be useful in this case.
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ranking = 1.4
keywords = ureterocele
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7/14. Cecoureterocele.

    We report 2 cases of cecoureterocele to emphasize the salient features of this clinical entity. Both patients had a protracted clinical course with repeated episodes of urinary tract infection. A properly performed voiding cystourethrogram demonstrated the problem clearly. Both cases were managed by endoscopic resection of the obstructing tissue. We describe the clinical course, radiological findings and a treatment option for this elusive problem.
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keywords = ureterocele
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8/14. Bladder outlet obstruction in the neonate.

    Seven neonates with severe bladder outlet obstruction causing urine retention and presenting with a large, palpable lower abdominal mass are reported. The obstruction was due in two cases to posterior urethral valves, in one case each to prune belly syndrome, prolapsing ureterocele, urethral diverticle, and in two cases to pelvic neuroblastoma. diagnosis was based on physical examination and roentgenographic studies. Therapy and prognosis of bladder outlet obstruction in neonates are discussed. Of the seven patients, 3 neonates died, the rest are developing well.
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ranking = 0.2
keywords = ureterocele
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9/14. hyperammonemia in a boy with obstructive ureterocele and proteus infection.

    We report on a boy with ureteroceles that obstructed the bladder outlet and ureters, who presented with sepsis and hyperammonemia despite normal liver function. The hyperammonemia was most likely caused by excessive absorption of ammonia produced by proteus mirabilis in the obstructed urinary tract.
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ranking = 1
keywords = ureterocele
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10/14. Bladder neck obstruction caused by a large simple ureterocele in a young male.

    The most common clinical presentation of ureterocele is infection of the urinary tract. Much less common is obstruction of the bladder outlet by prolapse of the ureterocele into the urethra. Even less common is simple occlusion of the bladder outlet by a nonprolapsing ureterocele. We present such a case where a large, simple ureterocele in a young male led to such obstruction.
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ranking = 1.6
keywords = ureterocele
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