Anatomical Vagaries of Double Ureters

Stephens, F. Douglas

doi:10.1111/j.1445-2197.1958.tb03793.x

Cited by 14 publications

(4 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Accepted for publication 25 February 1987 the mucosa and submucosa of the excised, distal non-dilated segments.' Studies utilizing primarily light microscopy have on the contrary suggested an increased muscle: collagen cell ratio in the undilated ureteral segment.'.…”

Section: Mega-ureter O B S T R U C T E D M E G a -U R E T E Rmentioning

confidence: 99%

Embryogenesis of Ureteral Anomalies: A Unifying Theory

Weiss

1988

Australian and New Zealand Journal of Surgery

View full text Add to dashboard Cite

Extensive gross, microscopic and clinical studies of various ureteral anomalies have enabled investigators to set forth theories regarding the aetiologies of these anomalies consistent with observed fact. Synthesis of these observations allows for a simplified classification of mega‐ureter (primary obstructed. reflux and non‐obstructed, non‐reflux mega‐ureters), ureterocele, duplex ureters and ectopic ureters based upon some combination of mesenchymal differentiation anomalies and location anomalies. A defect early in mesenchymal differentiation would be expected to result in panureteral disease. A defect later in development would result in a focal abnormality anywhere along the course of the ureter. Influence upon ureteral bud mesenchyme by local expansion factors in the bladder base may result in various types of ureterocele. Position of the ureteral orifice on the trigone or in Wolffian duct derivatives would occur in accordance with the Weigert‐Meyer principle and would correlate with upper tract dysplasias. Thus, an attempt has been made to systematize and trace the origins of mega‐ureter, ureterocele, duplex ureters and ectopic ureters to defects of differentiation of the basic mesoblastic cell in aberrant locations of the ureteral bud.

show abstract

Section: Mega-ureter O B S T R U C T E D M E G a -U R E T E Rmentioning

confidence: 99%

Embryogenesis of Ureteral Anomalies: A Unifying Theory

Weiss

1988

Australian and New Zealand Journal of Surgery

View full text Add to dashboard Cite

show abstract

“…Such reports have described, for example, anomalies of number, position, and termination [1], There have also been several proposals to explain these rare examples of faulty embryologic development [2][3][4]. We recently encountered a case of an ectopic blind-ending ureter that opened on the left of the neck of the bladder together with right complete double ureters with an ectop ic orifice that opened on the left of the urethral meatus.…”

Section: Introductionmentioning

confidence: 99%

Crossed Ureteral Ectopia with an Ectopic Blind-Ending Ureter

Chida¹,

Orikasa²,

Konda³

et al. 1995

Urol Int

View full text Add to dashboard Cite

A rare case of multiple urological anomalies is presented. The chief complaint of the patient, a 12-year-old girl, was urinary incontinence. Radiologic and endoscopic examinations revealed that the patient had a normal left kidney and ureter, a left ectopic blind-ending ureter that opened near the neck of the bladder, and right complete double ureters with an ectopic orifice that opened on the left of the external urethral meatus. This orifice was responsible for her urinary incontinence. Right ureteroneocystostomy was performed and the incontinence was cured. An attempt was made to explain the embryological origin of the anomalies observed in this case. We postulated that during development, on the left, there were three ureteral buds on the mesonephric duct. The first bud was at the normal position and drained the left kidney in a normal manner. The second bud was cranial from the normal position on the mesonephric duct and was associated with growth in an abnormal direction. This bud made contact with the upper portion of the right metanephric mass. The last bud grew between the two aforementioned buds. This bud was not draped by the metanephric mass and became the blind-ending ureter. On the right, one ureteral bud was located on the mesonephric duct and it made contact with a metanephric mass that became the right kidney. The upper part of the right kidney was drained by the ureter that had originally been located on the left mesonephric duct. This condition should be termed crossed ureteral ectopia rather than crossed renal ectopia, since the ureter was the structure that crossed.

show abstract

“…Regarding our case we reached the diagnosis from the results of Ultrsounography , Intravenous Urography together with EUA (examination under anesthesia ) and Cystoscopy An ectopic ureteral orifice, i. e., the location of one or more ureteral openings in a position outside the bladder, while infrequent is no longer regarded as a medical curiosity or as a rare finding , Furthermore the poor hygiene and subsequent mental anguish over the "wetness" caused by this anomaly can usually be remedied if the correct diagnosis is made and competent treatment carried out [11]. On the other hand, if the malformation is overlooked, incompletely evaluated, or improperly treated, poor or discouraging results will be obtained.…”

mentioning

confidence: 99%

Ectopic Ureteric orifices with Bilateral Duplicated Collecting System

alshwani¹

2013

KUJSS

View full text Add to dashboard Cite

Ectopic ureter occurs three times more commonly in females than in males. More than 80% of female ectopic ureters involve duplicated systems, while the majority of male ectopic ureters are of a single system , this rare case of ectopic ureteric orifice was diagnosed in 10 year old female child who presented with continuous dribbling of urine day and night ,after clinical examination together with Intravenousurography and cystoscopic examination the final diagnosis of bilateral complete duplicated system with unusual ectopic four ureteric orifices was settled .

show abstract

Anatomical Vagaries of Double Ureters

Cited by 14 publications

References 10 publications

Embryogenesis of Ureteral Anomalies: A Unifying Theory

Embryogenesis of Ureteral Anomalies: A Unifying Theory

Crossed Ureteral Ectopia with an Ectopic Blind-Ending Ureter

Ectopic Ureteric orifices with Bilateral Duplicated Collecting System

Contact Info

Product

Resources

About