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Difficult Management of a Patient with Complicated Bilateral Duplication of Renal Collecting Systems and Associated Pathology J Urol Res 1(2): 1007

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Difficult Management of a Patient with Complicated Bilateral Duplication of Renal Collecting Systems and Associated Pathology J Urol Res 1(2): 1007 Central Journal of Urology and Research Research Article *Corresponding author Patrick Richard Fraser, University of North Texas Health Science Center-Texas College Difficult Management of a of Osteopathic Medicine, 3500 Camp Bowie Boulevard, Fort Worth, Texas, 76107-2699, USA, Tel: 1(817)443-7467; Fax: +1(817) 735-2610; Email: Patient with Complicated Submitted: 23 February 2014 Bilateral Duplication of Accepted: 28 February 2014 Published: 04 March 2014 Copyright Renal Collecting Systems and © 2014 Fraser et al. Associated Pathology OPEN ACCESS Keywords Patrick R Fraser1*, Arthur C Bredeweg1, Robert Stroud2 and • Bilateral Armando A Rosales1 • Duplication • Infection 1 Integrative Physiology and Anatomy, University of North Texas HSC-TCOM, USA • Pathology 2 Lonestar Urology, University of North Texas HSC-TCOM, USA • Ureters Abstract A 31-year-old female with a 19-year history of chronic urinary tract infections, intermittent hematuria, and associated flank pain was referred to our service for evaluation and treatment. Increasing frequency and severity of the infections prompted the following diagnostic studies to elucidate the etiology of the patient’s condition: abdominal and pelvic computed tomography scans, intravenous pyelography, voiding cystourethrography, kidney ureter and bladder x-rays, flexible cystoscopy, bilateral renal ultrasonographies, cystourethroscopy with sounding, bilateral retrograde pyelographies with fluoroscopy, and ureteroscopy. Our studies revealed an uncommon, bilateral duplication of the urinary collecting systems. Upper and lower pole collecting systems, each with their own ureter, were discovered bilaterally. Chronic changes of the upper pole collecting system of the left kidney were observed, including hydroureter, caliectasis, and renal calculi. Furthermore, a large ureterocele, measuring 4 cm in length x 2 cm maximum transverse diameter, was observed in the distal portion of the left upper pole ureter. This ureter inserted into the proximal portion of the external sphincter muscle of the female urethra. These findings are consistent with an obstructive process that resulted in chronic damage to the left upper pole collecting system, and presents a difficult clinical scenario to manage. The duplicated collecting system on the right showed normal function despite its anatomical variation. Based on this finding, we believe that the location where the duplicated ureter inserts into the bladder is more predictive of chronic renal insult and associated pathology versus the presence of the variant alone causing problems. INTRODUCTION non-duplicated side. Renal duplications are found to have a Anatomic variation is generally part of the differential UTIs [1]. diagnosis when a healthcare professional sets out to diagnose and significantly increased incidence in chronic pyelonephritis and manage chronic urologic problems, such as chronic Urinary Tract One group of investigators looked into a set of complicated Infections (UTI) or chronic pyelonephritis. These conditions can renal duplications and found that most cases were unilateral. Furthermore, among those unilateral duplications, a be caused by anatomic variations that create backward pressure predominance of upper pole duplications were found in a 3:1 ratio, with lower pole duplications comprising the smaller prevalence of ureter duplication are elusive; however, some on the renal collecting system. Concrete figures detailing group. They also demonstrated that the most common comorbid studies suggest that unilateral and bilateral duplication occur in condition present with a duplicated urinary collecting system was approximately 1.5% and 0.3% of the population, respectively. hydronephrosis [2]. Hydronephrosis is the condition resulting All forms of renal duplication have a 2:1 predominance for females to males. Ureteroceles are commonly linked with renal of the renal calyces and swelling of the renal pelvises can provide duplication, but only in unilateral duplications, and only on the from the constant reflux of urine back into the kidney. Blunting evidence of reflux on IVP or retrograde pyelography. Cite this article: Fraser PR, Bredeweg AC, Stroud R, Rosales AA (2014) Difficult Management of a Patient with Complicated Bilateral Duplication of Renal Collecting Systems and Associated Pathology J Urol Res 1(2): 1007. Fraser et al. (2014) Email: Central One particular case study revealed a total obstruction of both with complicated duplication of urinary collecting systems duplicated lower pole moieties in a case of bilateral duplication of the urinary collecting system. The patient was 22-year-old pain. Furthermore, the unusual nature of the variant in our case presentswith concomitant a unique chronicclinical pyelonephritisdilemma, and requiresand persistent a thorough flank after a normal vaginal delivery. Angiography and retrograde understanding of the condition, the associated complications, primagravidawho experienced sepsis and flank mass two days and the available treatment modalities to successfully manage of the lower pole moieties and subsequent hydronephrosis the patient. inpyelography those areas were [3]. used The togroup observe described significant a spherical bilateral mass occlusion that MATER IALS AND METHODS In the routine evaluation of a 31-year-old Caucasian American contained a curved segment of thickened calcification that blocked inferiorflow from renal lower fossa. aspect of the left kidney, and a significantly large was discovered on imaging studies. Multiple diagnostic tools were inflammatory mass that blocked the lower portion of the right utilizedfemale for in chronicthe study UTI of and this chronic patient. flank Studies pain, included an anatomic abdominal variant hydronephrosis in patients with some form of obstruction as The treatment of vesicoureteral reflux and/or a result of complications secondary to partial duplication of and pelvic CT scans, Intravenous Pyelography (IVP), Voiding urinary collecting system has been controversial. The standard (RUS),Cystourethrography cystourethroscopy (VCUG), with Kidney sounding, Ureter bilateraland Bladder retrograde X-Rays operative procedure for such conditions has traditionally been (KUB), flexible cystoscopy, Bilateral Renal Ultrasonographies heminephrectomy, in which case the dysfunctional pole of used in this report (Figure 1-3) were obtained with screen the kidney is removed, along with its associated ureter. The pyelographies with fluoroscopy, and ureteroscopy. Images duplication of the ureter and the associated renal pelvis is the machine. These images were scanned into a computer with an most common upper urinary tract variation in childhood. When capture during real-time fluoroscopy, which were printed off the heminephrectomy has been undertaken, in most cases the Epson 420x scanner. Subsequently, the images were imported defunctionalized segment is often left in situ. In such cases, long- term follow-up has shown that leaving behind the problematic into Microsoft PowerPoint and black boxes were used to obscure segment causes little to no problems. One study showed that later patient identifiers in respect to HIPAA laws and patient privacy. resection of the defunctionalized segment was unnecessary [4]. TheR ESULTS images were not modified or altered in any other respect. Another study analyzed the effectiveness of nonsurgical The aforementioned studies revealed an uncommon, bilateral duplication of the urinary collecting systems. Upper restricted to segments of kidney associated with duplication and lower pole collecting systems, each with their own ureter, management of vesicoureteral reflux and/or hydronephrosis of the urinary collecting system. In that study, the group were discovered in both kidneys (Figure 1-2). Chronic changes included unilateral and bilateral duplications, all of which were of the upper pole collecting system of the left kidney including hydroureter, caliectasis, and renal calculi were also observed. Furthermore, a large ureterocele, measuring 4 cm in length x 2 experiencing some form of reflux and dysfunction. Reflux was analysis. The patients were divided in three groups: no treatment, cm maximum transverse diameter, was observed in the distal graded on a scale of I-V, and all groups were included in the antibiotics, and surgical intervention. Outcomes were shown to portion of the left upper pole ureter (Figure 3). This ureter be statistically equal across the three groups, with the antibiotic inserted into the proximal portion of the external sphincter to conclude that conservative management of vesicoureteral be dilated (Figure 1). group having less UTIs. These findings caused the investigators muscle of the female urethra. Both left ureters were observed to Di N SCUSSIO refluxDespite is preferred the obvious over surgical lean away intervention from surgical [5]. intervention in the case of duplicated urinary collecting systems, a group of Chronic UTI, chronic pyelonephritis, ureteroceles, psoas hitch with Lich-Gregoironlay is an effective technique for are important conditions that each alone poses a threat to the ureteralurologists reconstruction. showed that a Thenew grouptechnique conducted known asa retrospectivethe modified hydroureter, caliectasis, chronic flank pain, and renal calculi and the management complicated. Such a case has potentially with Lich-Gregoironlay during reconstruction of the ureter. devastatingkidneys. When effects they on occur the well-being in concert, of the patient.threat is A magnified,treatment
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