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Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

An ectopic ureterocele may be defined as a cystic dilatation of the distal submucosal or intravesical portion of a ureter that is associated with the ectopic moiety of a completely duplicated system or, in the absence of duplication, associated with a ureter draining into an ectopic position. Using this definition, we reviewed our experience with 22 children treated during a 7-year period. More than 50 per cent were less than 3 years old at the time of presentation. The female preponderance was 3 to 1. Urinary infection was the most frequent mode of presentation. The diagnosis is made most easily when there is a high index of suspicion. Although treatment must be tailored to the situation, in general total heminephroureterectomy and excision of the ureterocele are the preferred choice. Eighty-seven per cent of the patients so treated has a satisfactory result.
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PMID:Ectopic ureteroceles in children. 66 Jul 67

We have seen 5 children with a non-obstructive ectopic ureterocele associated with an undilated upper pole collecting system. Thus the telltale signs of renal duplication found with obstruction of the upper pole were absent. Cystoscopy confirmed the diagnosis when retrograde injection of the ureterocele outlined a narrow ureter and small dysplastic kidney. Because reflux usually was present in the ipsilateral lower pole ureter (86 per cent) surgical treatment consisted of excision of the ureterocele and common sheath ureteral reimplantation. Removal of the small non-functioning upper renal segment was not necessary in most instances. The embryology of this anomaly is discussed.
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PMID:The non-obstructive ectopic ureterocele. 66 Jul 68

Renal duplication is the most common malformation within the urinary tract system and as such a particular challenge to the pediatrician with regard to diagnosis and therapy. It is discovered either by chance or in relation to chronically recurring urinary tract infections. Urinary tract infection is the main clinical symptom in 2/3 of all the patients with renal duplication. Incidence, age-and sex-distribution, predilection of side or bilateral occurrence, configuration of the ureter and the statistically significant combination with vesico-uretral reflux show systematic regularities and are discussed in connection with the literature. Ureterocele, concrements, obstructions or hydronephrosis often are consequences of renal duplication or, as with hydronephrosis, correlated malformations like aplasia, hypoplasia, malrotation, horseshoe kidney or duplication of the urethra. There is a causative relation between renal duplication and tumors or tuberculosis. Other correlated malformations are particularly heart malformations or myelomeningocele. It depends on the severity of the disease whether therapy will be symptomatic or operative. Between 1968 and 1974 we saw 114 children with renal duplication.
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PMID:[Renal duplication in childhood. Incidence and clinical significance (author's transl)]. 66 29

For treatment of simple ureterocele in children an operative technique is presented which is designed to eliminate the ureterocele and prevent future vesicoureteral reflux. This technique combines an intravesical with an extravesical approach to the distal ureter. The ureterocele is excised and the ureter reimplanted in the bladder at a different site. The exposure of the distal ureter allows tailoring to reduce its caliber, if needed, before reimplantation. During the last eight years 7 children with ureterocele of a single ureter have been treated with this technique. In each of the 7 children the objectives of the operation have been achieved, as proved by postoperative follow-up.
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PMID:Operative technique for treatment of ureterocele of single ureter in children. 69 49

Of 37 adult patients with ureteroceles, 13 also had calculous disease (35 per cent). Of these 13 cases 7 had single ureters and 6 had duplicated ones. None had a metabolic or urinary abnormality such as hypercalcemia, gout, hypercalciuria or hyperuricuria. Two of the patients were a mother and daugher--the first reported familial incidence of ureterocele with calculous disease. A surgical technique is described for removal of the calculus, excision of the ureterocele and reimplantation of the ureter. The procedure was used in 4 of the 7 patients with single ureters, while the stone passed spontaneously in 2 patients and was treated by ureterolithotomy in 1. A modification of the technique was used in 2 of the 6 patients with duplicated ureters but other surgical procedures were used in the remaining 4. Of 10 stones that were analyzed 2 were struvite and none contained cystine or uric acid. Long-term followup is a requisite to assure control of this clinical entity.
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PMID:Management of urinary calculous disease in patients with ureterocele. 83 Sep 66

The cobra-shaped distal ureter is not pathognomonic of a ureterocele. It may be seen with incomplete distal ureteral obstruction owing to tumor or calculus. The appearance of the wall surrounding the dilated distal ureteral segment is a more important finding to differentiate a ureterocele and a pseudoureterocele. The wall of a ureterocele is thin, while the lucency surrounding a pseudoureterocele is thicker and poorly defined.
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PMID:Ureterocele and pseudoureterocele: cobra versus cancer. 87 Jul 5

An analysis of 5 patients with an acquired dilatation of the distal ureter, simulating a simple ureterocele, is herein reported. Radiologically, pseudoureteroceles are more likely to be associated with ipsilateral upper tract obstruction and have asymmetric intravesical dilatation. The urologist should be aware of this urographic deformity, for the majority of pseudoureteroceles are related to malignancy involving or invading the bladder.
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PMID:Pseudoureterocele: a uroradiologic entity. 91 47

A significant number of ureters with ectopic insertion occur in the single (nonduplex) collecting system. We have investigated 16 patients with this anomaly whose ureters were abnormal enough to cause problems. Characteristic symptoms at presentation included a pelvic mass, ureterovesical obstruction, a ureterocele, urinary dribbling, epididymitis, and infection of the urinary tract with or without reflux. Radiographic evaluation is usually possible using only intravenous urogarphy and voiding cystourethrography. Nonvisualization of one kidney in association with one of the above findings should suggest a single ectopic ureter. Particular attention should be paid to the site of ureteral insertion whenever reflux is seen.
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PMID:The single ectopic ureter. 99 31

Surgical management of 100 children with abnormalities related to ureteral duplication is reviewed. In general, separation of the distal portions of the double ureters is avoided, at least during the initial procedure, because this maneuver represents a significant risk to the blood supply and hence to the integrity of the remaining ipsilateral ureter. Complete ureteral duplication with vesicoureteral reflux is best managed initially by reimplantation of the duplex unit. On the other hand, upper segment heminephrectomy with subtotal ureterectomy is the initial treatment of choice for ureters ending ectopically with or without ureterocele.
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PMID:Problems and solutions in surgical treatment of 100 consecutive ureteral duplications in children. 114 83

A series of 14 patients treated with transurethral slitting of the ureteral orifice is presented. In 6 cases there was a stone at the distal end of the ureter and in 8 cases a ureterocele. Half the patients developed vesico-ureteral reflux. Other complications, such as urinary infection or renal scarring, have not been observed during the mean follow-up period of 47 months from the time of operation.
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PMID:Vesico-ureteral reflux following transurethral slitting of the ureteral orifice. 119 Jun 90


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