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Ureter obstruction

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https://www.readbyqxmd.com/read/28164035/proximal-ureteral-atresia-a-rare-congenital-anomaly-incidental-finding-a-case-report
#1
Cosimo Bleve, Maria Luisa Conighi, Lorella Fasoli, Valeria Bucci, Francesco Battaglino, Salvatore Fabio Chiarenza
Ureteral atresia is a rare disease usually associated with a non-functioning dysplastic kidney. The condition may be unilateral or bilateral; focal, short or long and may involve any part of the ureter. Association with other urinary anomalies is rare. We report the case of a 10-month-old boy with prenatal diagnosis of multicystic right kidney. This suspicion was confirmed after birth by ultrasound and static scintigraphy; a right vesicoureteral reflux (VUR) was recorded at cystography. The boy presented a regular renal function but was hospitalized twice for suspected pyelonephritis between the 8th and the 10th month of life and were recorded occasional mild changes in blood pressure...
January 2017: Translational pediatrics
https://www.readbyqxmd.com/read/28145916/hydronephrosis-presenting-6-months-after-sacral-colpopexy-case-report-and-literature-review
#2
Emily Weber LeBrun, Estefania Santamaria, Louis Moy
OBJECTIVES: The aim of this study was to describe a case of uterovaginal prolapse managed with robotic-assisted sacral colpopexy complicated by severe right-sided hydronephrosis despite normal intraoperative cystoscopy. METHODS: A 68-year-old woman presented with a worsening vaginal bulge over the past 2 years. Tricompartment stage 2 uterovaginal prolapse, with dominant cystocele and skin erosion at the posterior fourchette from prolapse friction, was identified on physical examination, and the patient underwent pelvic reconstructive surgery, including sacral colpopexy...
January 31, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28134406/-the-ormond-s-disease-an-intriguing-obstructive-nephrouropathy
#3
Rocco Manganelli, Serena Manganelli, Salvatore Iannaccone, Walter De Simone
Idiopathic retroperitoneal fibrosis also known as Ormonds disease is a rare disorder characterized by the development of fibrotic tissue in the retroperitoneum involving the abdominal aorta and iliac arteries, ureters and the inferior vena cava. The aberrant tissue may compress ureters leading to obstructive nephrouropathy and renal failure, which are the most common clinical manifestations of this condition. The nephrologist is often consulted to make differential diagnosis for acute renal failure and obstructive uropathy...
November 2016: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28092863/adipose-derived-stem-cells-ameliorate-renal-interstitial-fibrosis-through-inhibition-of-emt-and-inflammatory-response-via-tgf-%C3%AE-1-signaling-pathway
#4
Yan Song, Changliang Peng, Shasha Lv, Jing Cheng, Shanshan Liu, Qing Wen, Guangju Guan, Gang Liu
Adipose-derived stem cells (ADSCs) have been successfully used to treat acute kidney injury or acute renal failure. However, the effect of ADSCs on treating renal interstitial fibrosis remains unknown. Here, we assessed the therapeutic efficacy of ADSCs on renal interstitial fibrosis induced by unilateral ureter obstruction (UUO) and explored the potential mechanisms. After 7days of UUO, rats were injected with ADSCs (5×10(6)) or vehicle via tail vein. We found that ADSCs administration significantly ameliorated renal interstitial fibrosis, the occurrence of epithelial-mesenchymal transition (EMT) and inflammatory response...
January 13, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28073208/experience-of-percutaneous-access-under-ultrasound-guidance-in-renal-transplant-patients-with-allograft-lithiasis
#5
Silvano Palazzo, Ottavio Colamonico, Saverio Forte, Matteo Matera, Giuseppe Lucarelli, Pasquale Ditonno, Michele Battaglia, Pasquale Martino
OBJECTIVE: Urolithiasis of the transplanted kidney has an incidence of 0.2 to 1.7%, it increases the risk of infection in immunosuppressed patients and it can lead to ureteral obstruction that is often associated with deterioration of renal function. Urolithiasis of the transplanted kidney has different characteristics compared to the native kidney, due to the absence of innervation, which does not lead to colic pain. Percutaneous approach is an optimal choice in transplant patients. MATERIAL AND METHODS: Here we report our experience in two cadaveric transplant patients with urolithiasis...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28073190/different-patterns-of-pelvic-ureteral-endometriosis-what-is-the-best-treatment-results-of-a-retrospective-analysis
#6
Salvatore Butticè, Antonio Simone Laganà, Giuseppe Mucciardi, Francesco Marson, Tzevat Tefik, Christopher Netsch, Salvatore Giovanni Vitale, Emre Sener, Rosa Pappalardo, Carlo Magno
OBJECTIVE: Endometriosis is an estrogendependent disease. The incidence of urinary tract endometriosis (UE) increased during the last few years and, nowadays, it ranges from 0.3 to 12% of all women affected by the disease. The ureter is the second most common site affected. The ureteral endometriosis is classified in extrinsic and intrinsic. The aim of this study is to individuate the best treatments for each subset of ureteral endometriosis. MATERIALS AND METHODS: 32 patients diagnosed with surgically treated UE were retrospectively reviewed...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28062436/contralateral-inguinal-herniation-of-a-transplant-ureter-causing-obstructive-uropathy-in-a-renal-transplant-recipient
#7
Niyati Lobo, Fiona McCaig, Jonathon Olsburgh
Ipsilateral inguinal herniation of the transplanted ureter has been reported as a rare cause of obstructive uropathy in renal transplant recipients. A 73-year-old man presented with acute renal failure 29 years after receiving a deceased donor renal transplant. Radiological investigations demonstrated marked hydronephrosis of the left iliac fossa transplant kidney and herniation of the distal transplant ureter and bladder into the right inguinal canal. The patient underwent placement of a nephrostomy and antegrade stent followed by definitive hernia repair with return of graft function to baseline level...
January 6, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28057266/t-box-genes-in-the-kidney-and-urinary-tract
#8
A Kispert
T-box (Tbx) genes encode an ancient group of transcription factors that play important roles in patterning, specification, proliferation, and differentiation programs in vertebrate organogenesis. This is testified by severe organ malformation syndromes in mice homozygous for engineered null alleles of specific T-box genes and by the large number of human inherited organ-specific diseases that have been linked to mutations in these genes. One of the organ systems that has not been associated with loss of specific T-box gene function in human disease for long is the excretory system...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28010137/hydronephrosis-with-ureteritis-developed-in-c57bl-6n-mice-carrying-the-congenic-region-derived-from-mrl-mpj-type-chromosome-11
#9
Osamu Ichii, Masataka Chihara, Shin-Hyo Lee, Teppei Nakamura, Saori Otsuka-Kanazawa, Taro Horino, Yaser Hosny Ali Elewa, Yasuhiro Kon
Inbred MRL/MpJ mice show several unique phenotypes in tissue regeneration processes and the urogenital and immune systems. Clarifying the genetic and molecular bases of these phenotypes requires the analysis of their genetic susceptibility locus. Herein, hydronephrosis development was incidentally observed in MRL/MpJ-derived chromosome 11 (D11Mit21-212)-carrying C57BL/6N-based congenic mice, which developed bilateral or unilateral hydronephrosis in both males and females with 23.5% and 12.5% prevalence, respectively...
December 23, 2016: Autoimmunity
https://www.readbyqxmd.com/read/27993711/late-onset-uretero-vesical-junction-obstruction-following-endoscopic-injection-of-bulking-material-for-the-treatment-of-vesico-ureteral-reflux
#10
David Ben-Meir, Zaher Bahouth, Sarel Halachmi
OBJECTIVE: To characterize patients who develop late obstruction after subureteral injection of bulking agent for the treatment of pediatric vesicoureteral reflux (VUR). METHODS: We retrospectively evaluated the medical records of all patients who underwent endoscopic injection for the correction of VUR during 2008-2015 in 2 centers in Israel: Bnai-Zion Medical Center, Haifa, and Schneider Children's Medical Center, Petah Tikva. Nine patients who developed late-onset obstruction were included in the study, and their data were reviewed and analyzed...
December 16, 2016: Urology
https://www.readbyqxmd.com/read/27979846/boari-flap-reconstruction-in-a-male-infant-with-solitary-kidney-and-associated-megaureter
#11
Durgesh Kumar Saini, Rahul Janak Sinha, Ashok Kumar Sokhal, Vishwajeet Singh
A 1-year-old male infant presented with fever and abdominal lump for 3 months with increased leucocyte count (15 300/mm(3)) and serum creatinine (0.83 mg%). Abdominal ultrasound and renal scan demonstrated solitary left kidney with dilated tortuous left ureter. Voiding cystourethrogram was unequivocal. Left percutaneous nephrostomy was placed after poor response to perurethral catheterisation. His serum creatinine dropped to 0.58 mg/dL. Subsequent percutaneous nephrostogram and CT nephrostogram showed dilated left pelvicalyceal system, dilated, tortuous left ureter...
December 15, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27964829/the-role-of-voiding-cystourethrography-in-asymptomatic-unilateral-isolated-ureteropelvic-junction-obstruction-a-retrospective-study
#12
Mohammed S ElSheemy, Waleed Ghoneima, Mohammad Abdelwahhab, Waseem Aboulela, Kareem Daw, Ahmed M Shouman, Ahmed I Shoukry, Mohamed El Ghoneimy, Hany A Morsi, Hesham Badawy
INTRODUCTION: The presence of concomitant vesicoureteric reflux (VUR) and ureteropelvic junction obstruction (UPJO) is uncommon. Nevertheless, the reported VUR coexisting with asymptomatic unilateral isolated hydronephrosis (AUIH) requiring pyeloplasty for correction of UPJO was of low grade and mostly resolved during conservative follow-up. Therefore, VCUG may be not indicated in these children except if voiding symptoms, urinary tract infection (UTI), dilated ureters, or bladder and ureteric abnormalities are suspected...
November 24, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27942382/a-case-report-giant-intra-abdominal-liposarcoma-presenting-acute-renal-failure
#13
Kazim Duman, Mustafa Girgin, Gokhan Artas
INTRODUCTION: Liposarcomas represent 20-30% of adult soft tissue tumors and its abdominal localization occurs only in 5% of cases. Most are asymptomatic, but few present with abdominal mass and pain, fatigue, nausea, vomiting. They infiltrate adjacent organs and cause intestinal obstruction, intestinal ischemia-perforation, hydronephrosis, ureteric fistula and even aortic rupture. Here we aimed to report a rare case of a giant liposarcoma which originated from mesentery. PRESENTATION OF CASE: A 45-year-old male presented with slightly abdomen distention, urinary retention, oliguria since fifteen days...
December 2016: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/27928169/ureteral-obstruction-secondary-to-disseminated-penicilliosis-in-a-german-shepherd-dog
#14
Michelle M Acierno, Christopher P Ober, Brad A Goupil, Erik J Olson
Abdominal ultrasonographic evaluation of a 2-year-old male German shepherd dog evaluated for weight loss demonstrated a right ureteral mass with ipsilateral hydronephrosis, hypoechoic splenic nodules, and hypoechoic and rounded lymph nodes. A fungal mat extending from the renal pelvis into the ureter secondary to disseminated Penicillium was confirmed at necropsy.
December 2016: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/27920988/ureteric-obstruction-caused-by-a-migrated-intrauterine-device
#15
Xuesong Yang, Xi Duan, Tao Wu
We present an extremely rare case of ureteric obstruction caused by a migrated intrauterine device. A 36-year-old female with complaints of almost 10 months left flank pain presented to our hospital. She used an IUD for contraception for 6 months after the birth of her first child. The IUD was not visible then. Ultrasonography (US) revealed that left severe hydronephrosis and upper ureterectasis. Pelvic computed tomography (CT) found that IUD was located very close to the lower ureter which was adjacent to the third anatomize physiological narrow...
January 2017: Urology Case Reports
https://www.readbyqxmd.com/read/27920841/wolffian-origin-of-vagina-unfolds-the-embryopathogenesis-of-ohvira-obstructed-hemivagina-and-ipsilateral-renal-anomaly-syndrome-and-places-ohvira-as-a-female-counterpart-of-zinner-syndrome-in-males
#16
Yashant Aswani, Ravi Varma, Pradeep Choudhary, Reeta B Gupta
BACKGROUND: The classical theory of Müllerian origin of upper vagina fails to explain complex urogenital malformations like OHVIRA syndrome; the Acien's hypothesis, however, unravels the hidden embryopathogenesis. As per Acien, Wolffian (mesonephric) ducts instead of Müllerian ducts and sinovaginal bulbs, give rise to the vagina. The new hypothesis, however, retains the concept of origin of the ureters (with ureters inducing renal development) by the former and the uterus by Müllerian ducts...
2016: Polish Journal of Radiology
https://www.readbyqxmd.com/read/27916681/surfactant-protein-a-deficiency-exacerbates-renal-interstitial-fibrosis-following-obstructive-injury-in-mice
#17
Shaojiang Tian, Chenxiao Li, Ran Ran, Shi-You Chen
Renal interstitial fibrosis is an inevitable consequence of virtually every type of chronic kidney disease. The underlying mechanisms, however, are not completely understood. In the present study, we identified surfactant protein A (SP-A) as a novel protein factor involved in the renal fibrosis induced by unilateral ureter obstruction (UUO). UUO induced SP-A expression in mouse kidney epithelium, likely due to the increased acidic stress and inflammation. Interestingly, SP-A deficiency aggravated UUO-prompted kidney structural damage, macrophage accumulation, and tubulointerstitial fibrosis...
February 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27914244/surgical-treatment-and-histopathological-assessment-of-advanced-cervicovaginal-carcinoma-a-prospective-study-and-retrospective-analysis
#18
Michael Höckel, Benjamin Wolf, Bettina Hentschel, Lars-Christian Horn
BACKGROUND: Standard treatment of advanced cervicovaginal cancer [international federation of gynecology and obstetrics (FIGO) stages II(B), III(A, B), IVA] is (chemo-)radiation excluding the possibility of systematic histopathological assessment of locoregional tumour spread. Laterally extended endopelvic resection (LEER) and therapeutic lymph node dissection (tLND) are novel surgical treatment options for advanced cervicovaginal cancer. METHODS: The therapeutic efficacy of LEER for locally advanced primary and recurrent cervicovaginal cancer was reassessed by an update of the prospective observational trial at the University of Leipzig...
January 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/27904125/use-of-corticosteroids-for-urinary-tuberculosis-patients-at-risk-of-developing-ureteral-obstruction
#19
Kosuke Matsui, Akitsugu Furumoto, Kojiro Ohba, Kota Mochizuki, Takeshi Tanaka, Masahiro Takaki, Konosuke Morimoto, Koya Ariyoshi
A 77-year-old man with urinary tuberculosis developed post renal anuria two days after starting an anti-tuberculosis drug regimen. He had bilateral hydronephrosis, and his right kidney was radiologically diagnosed to be non-functioning. A transurethral catheter was placed in the left ureter. No improvement in the ureteral stricture was noted during the initial three weeks of treatment; however, the stricture did thereafter improve after the commencement of oral prednisolone. In cases of urinary tuberculosis, ureteral stricture can deteriorate and result in ureteral obstruction during anti-tuberculosis treatment...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27900216/predictors-of-renal-recovery-in-renal-failure-secondary-to-bilateral-obstructive-urolithiasis
#20
Muthukrishna P Rajadoss, Chandrasingh Jeyachandra Berry, Grace J Rebekah, Vinu Moses, Shyamkumar N Keshava, Kuruthukulangara S Jacob, Santosh Kumar, Nitin Kekre, Antony Devasia
OBJECTIVES: To identify factors predicting renal recovery in patients presenting with renal failure secondary to bilateral obstructing urolithiasis. PATIENTS AND METHODS: Data from electronic records of consecutive adult patients presenting with bilateral obstructing urolithiasis between January 2007 and April 2011 were retrieved. Ultrasonography of the abdomen, and kidney, ureter, bladder (KUB study) X-ray or abdominal non-contrast computed tomography confirmed the diagnosis...
December 2016: Arab Journal of Urology
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