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Ureteral cancer

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https://www.readbyqxmd.com/read/28207528/idiopathic-retroperitoneal-fibrosis-causing-unilateral-ureteral-and-sigmoid-colon-obstruction-a-case-report
#1
Ting Yan, Yujuan Wang, Zhijun Liu, Xiaolei Zhang, Qian Wu, Mingrong Xi
OBJECTIVE: The present report aimed to present a unique case of idiopathic retroperitoneal fibrosis (RPF) presenting features of unilateral ureteral and sigmoid colon obstruction. RPF is a rare disorder with unclear etiology. CASE REPORT: A 43-year-old female had a 10-day history of lower right abdominal and lumbar pain. Gynecological examination, ultrasound, and computed tomography (CT) were all suggestive of right ovarian tumor. An enhanced CT showed right-sided hydronephrosis...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28198599/impact-of-a-bladder-cuff-excision-during-radical-nephroureterectomy-on-cancer-specific-survival-in-the-patients-with-upper-tract-urothelial-cancer-in-korea-a-retrospective-multi-institutional-study
#2
Yun-Sok Ha, Jae-Wook Chung, Seock H Choi, Jun N Lee, Bum S Kim, Tae-Hwan Kim, Eun S Yoo, Tae G Kwon, Seok-Soo Byun, Young D Choi, Ho W Kang, Seok J Yun, Wun-Jae Kim, Hyun T Kim
BACKGROUND: Radical nephroureterectomy (RNU) with bladder cuff excision (BCE) is the surgical principle adopted for the treatment of upper tract urothelial cancers (UTUCs). However, not all RNUs are performed with BCE. We quantified the prognostic impact of RNU with BCE on cancer-specific survival (CSS) in a large patient population. METHODS: In total, 505 patients with UTUC were enrolled from four different institutions. The clinicopathological parameters of patients who underwent RNU with and without BCE were compared...
February 14, 2017: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/28159465/a-comparison-of-sentinel-lymph-node-biopsy-to-lymphadenectomy-for-endometrial-cancer-staging-fires-trial-a-multicentre-prospective-cohort-study
#3
Emma C Rossi, Lynn D Kowalski, Jennifer Scalici, Leigh Cantrell, Kevin Schuler, Rabbie K Hanna, Michael Method, Melissa Ade, Anastasia Ivanova, John F Boggess
BACKGROUND: Sentinel-lymph-node mapping has been advocated as an alternative staging technique for endometrial cancer. The aim of this study was to measure the sensitivity and negative predictive value of sentinel-lymph-node mapping compared with the gold standard of complete lymphadenectomy in detecting metastatic disease for endometrial cancer. METHODS: In the FIRES multicentre, prospective, cohort study patients with clinical stage 1 endometrial cancer of all histologies and grades undergoing robotic staging were eligible for study inclusion...
January 31, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28124532/the-burden-of-chronic-ureteral-stenting-in-cervical-cancer-survivors
#4
Robert A Goldfarb, Yunhua Fan, Stephanie Jarosek, Sean P Elliott
PURPOSE: Ureteral obstruction in cervical cancer occurs in up to 11% of patients, many of whom undergo ureteral stenting. Our aim was to describe the patient burden of chronic ureteral stenting in a population-based cohort by detailing two objectives: (1) the frequency of repeat procedures for ureteral obstruction; and, (2) the frequency of urinary adverse effects (UAEs) (e.g., lower urinary tract symptoms, flank pain). MATERIALS AND METHODS: From SEER-Medicare, we identified 202 women who underwent ureteral stent placement prior to or following cervical cancer treatment...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28119847/ureteral-rupture-caused-by-a-suprapubic-catheter-in-a-male-patient-with-spinal-cord-injury-a-case-report
#5
Hye Jung Choi, Chang Han Lee, Heesuk Shin
Spinal cord injury (SCI) may lead to urinary system disturbances. Patients with SCI usually have neurogenic bladder, and treatment optionss for this condition include clean intermittent catheterization and a permanent indwelling urethral or suprapubic catheter. Complications of catheterization include urinary tract infection, calculi, urinary tract injury, bladder contraction, bladder spasm, renal dysfunction, bladder cancer, and so forth. To the best of our knowledge, ureteral rupture is an unusual complication of catheterization, and ureteral rupture has been rarely reported in SCI patients...
December 2016: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28117816/a-murine-orthotopic-bladder-tumor-model-and-tumor-detection-system
#6
Sin Mun Tham, Kesavan Esuvaranathan, Ratha Mahendran
This protocol describes the generation of bladder tumors in female C57BL/6J mice using the murine bladder cancer cell line MB49, which has been modified to secrete human Prostate Specific Antigen (PSA), and the procedure for the confirmation of tumor implantation. In brief, mice are anesthetized using injectable drugs and are made to lay in the dorsal position. Urine is vacated from the bladder and 50 µL of poly-L-lysine (PLL) is slowly instilled at a rate of 10 µL/20 s using a 24 G IV catheter. It is left in the bladder for 20 min by stoppering the catheter...
January 12, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28117002/b3-adrenoceptor-control-of-lower-gen%C3%A4-tour%C3%A4-nary-tract-organs-and-funct%C3%A4-on-in-male-an-overv%C3%A4-ew
#7
Ecem Kaya, Suresh C Sikka, Didem Yilmaz Oral, Isil Ozakca, Serap Gur
BACKGROUND: The sympathetic nervous system is one component of the nervous regulatory system of the physiological function of the lower genitourinary tract. Our knowledge on the role of this sympathetic system has advanced during the last decade due to the characterization of b3-adrenoceptors (b3-ARs) in the urogenital system. OBJECTIVE: This review focuses on the pharmacological and molecular evidence supporting the functional roles of β3-AR in male genitourinary tissues of various species...
January 20, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28111222/intentional-omission-of-ureteral-stents-during-robotic-assisted-intracorporeal-uretero-enteric-anastomosis-is-it-safe-and-feasible
#8
Wei Phin Tan, Patrick Whelan, Leslie Deane
OBJECTIVE: To describe the surgical technique we use to perform a stentless intracorporeal uretero-enteric anastomosis and to determine the outcomes in this initial series. METHODS: We performed a retrospective review of a prospective database of all patients undergoing robotic assisted intracorporeal urinary diversion with stentless uretero-enteric anastomosis between March 2014 and July 2016. Diversions were performed either at the time of robotic assisted laparoscopic cystectomy for bladder cancer or urinary diversion for other indications...
January 19, 2017: Urology
https://www.readbyqxmd.com/read/28097262/lessons-learned-over-a-decade-of-pediatric-robotic-ureteral-reimplantation
#9
REVIEW
Minki Baek, Chester J Koh
The da Vinci robotic system has improved surgeon dexterity, ergonomics, and visualization to allow for a minimally invasive option for complex reconstructive procedures in children. Over the past decade, robot-assisted laparoscopic ureteral reimplantation (RALUR) has become a viable minimally invasive surgical option for pediatric vesicoureteral reflux (VUR). However, higher-than-expected complication rates and suboptimal reflux resolution rates at some centers have also been reported. The heterogeneity of surgical outcomes may arise from the inherent and underestimated complexity of the RALUR procedure that may justify its reclassification as a complex reconstructive procedure and especially for robotic surgeons early in their learning curve...
January 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/28096918/perioperative-outcomes-following-radical-prostatectomy-for-patients-with-disseminated-cancer-an-analysis-of-the-national-surgical-quality-improvement-program-database
#10
Raj Satkunasivam, Christopher J D Wallis, James Byrne, Azik Hoffman, Douglas C Cheung, Girish S Kulkarni, Avery B Nathens, Robert K Nam
INTRODUCTION: We sought to determine whether patients undergoing radical prostatectomy (RP) in the context of disseminated cancer have higher 30-day complications. METHODS: We conducted a retrospective cohort study of the National Surgical Quality Improvement Program (NSQIP) database. Men undergoing RP (from January 1, 2005 to December 31, 2014) for prostate cancer were identified and stratified by presence (n=97) or absence (n=27 868) of disseminated cancer. The primary outcome was major complications (death, re-operation, cardiac or neurologic events) within 30 days of surgery...
November 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28094201/diagnosing-urogenital-schistosomiasis-dealing-with-diminishing-returns
#11
REVIEW
Loc Le, Michael H Hsieh
Urogenital schistosomiasis, caused by Schistosoma haematobium, is the most prevalent form of schistosomiasis affecting humans, and can result in severe bladder, kidney, ureteral, and genital pathologies. Chronic infection with S. haematobium has been linked with bladder cancer and increased risk for HIV infection. As mass drug administration with praziquantel increases in an attempt to transition from control to elimination of schistosomiasis, the need for updated, more sensitive diagnostic tools becomes more apparent, especially for use in areas of low infection intensity and for individuals with light infections...
January 13, 2017: Trends in Parasitology
https://www.readbyqxmd.com/read/28088772/thrombospondin-immune-regulation-and-the-kidney
#12
Claudio Ponticelli, Hans-Joachim Anders
Most therapeutic attempts to prevent the progression of kidney diseases have been based on interventions to inhibit the production of transforming growth factor-β (TGF-β). Thrombospondins (TSPs) play an important role in activating TGF-β. In the healthy kidney, two TSPs are expressed, TSP1 and TSP2, which exert contrasting effects. While TSP1 is a major activator of TGF-β in renal cells and exerts pro-inflammatory effects both in vitro and in vivo, TSP2 lacks the ability for TGF-β activation but regulates matrix remodeling and inflammation in experimental kidney disease...
January 14, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28078533/risk-factors-for-intravesical-recurrence-after-nephroureterectomy-in-patients-with-upper-urinary-tract-urothelial-carcinoma
#13
Ryo Yamashita, Reiko Watanabe, Ichiro Ito, Hideo Shinsaka, Masafumi Nakamura, Masato Matsuzaki, Masashi Niwakawa
PURPOSE: To determine major risk factors for bladder cancer (BC) recurrence after nephroureterectomy (Nux) by focusing on the pathologic appearances of tumors in upper urinary tract urothelial carcinomas (UUTUCs). METHODS: We performed 147 Nux procedures between November 2002 and September 2015. Forty-eight patients were excluded because of a history of BC (28 patients), previous or concurrent radical cystectomy (9 patients), neoadjuvant chemotherapy (5 patients), and other reasons (6 patients)...
January 11, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28074261/perioperative-chemotherapy-in-upper-tract-urothelial-carcinoma-a-comprehensive-review
#14
REVIEW
Atiqullah Aziz, Jakub Dobruch, Kees Hendricksen, Luis A Kluth, Andrea Necchi, Aidan Noon, Michael Rink, Florian Roghmann, Roland Seiler, Paolo Gontero, Wassim Kassouf, Shahrokh F Shariat, Evanguelos Xylinas
PURPOSE: To evaluate the role of neoadjuvant (NAC) and adjuvant chemotherapy (AC) in patients with upper tract urothelial carcinoma (UTUC) treated with radical nephroureterectomy (RNU). METHODS: A comprehensive review of the current literature was performed searching for all studies investigating NAC and AC in UTUC in MEDLINE and https://clinicaltrials.gov , prior to April 2016. The following keywords were used: "ureteral neoplasms," "urothelium," "ureter," "upper tract urothelial," "chemotherapy," "adjuvant," "neoadjuvant" and relevant variants...
January 10, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28005154/-pathogenesis-of-urological-complications-after-radiation-therapy
#15
Y Tolkach, G Kristiansen
Radiation therapy is a treatment modality that is often used in the uro-oncological setting. The common indication for the radiation therapy in the urological sphere is prostate cancer, whether it is used primarily as a radical approach, or postoperatively as adjuvant or salvage therapy. All urological organs are sensitive to radiation injury with the urinary bladder being the most susceptible with a typical cascade including acute and late changes, arising in the dose-dependent manner. The common indication for radiation therapy in urology is prostate cancer, which collaterally affects the urinary bladder and rarely urethra (especially the bulbo-membranous urethra)...
December 22, 2016: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/27987509/-preoperative-prognostic-factors-and-preoperative-risk-stratification-of-upper-tract-urothelial-carcinoma
#16
Y C Xing, G Y Xiong, D Fang, Z Zhang, L Cai, L Zhang, Z S He, X S Li, L Q Zhou
OBJECTIVE: To identify the preoperative prognostic factors of upper tract urothelial carcinoma (UTUC) and construct preoperative risk stratification system. METHODS: A retrospective study including 686 patients who were diagnosed with UTUC and received radical nephroureterectomy or partial ureterectomy in Peking University First Hospital during 2003 and 2013. RESULTS: Of the 686 UTUC patients, 303 (44.2%) were male and 383 (55.8%) female. The postoperative pathological examination showed that 203 (29...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27957822/laparoscopic-assisted-abdominoperineal-resection-combined-with-en-bloc-prostatectomy-using-the-trans-sacral-approach-for-locally-invasive-rectal-cancer-a-case-report
#17
Jo Tashiro, Shigeki Yamaguchi, Toshimasa Ishii, Hiroka Kondo, Kiyoka Hara
Laparoscopic-assisted abdominoperineal resection and en-bloc prostatectomy using the trans-sacral approach for locally invasive rectal cancer that invades only the prostate is useful in order to avoid total pelvic exenteration. The patient was a 63-year-old man with cT4b (prostate) N1M0, stage IIIC rectal cancer. Curative resection was performed. Histopathological findings did not indicate definitive invasion into the prostate gland. The patient was discharged from the hospital on postoperative day 32 with an anastomotic leak and a ureteral catheter...
December 13, 2016: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/27919138/-modified-toyoda-method-for-complete-duplex-ureters-in-tubeless-cutaneous-ureterostomy-report-of-a-case
#18
Chul Jang Kim, Ryo Fujiwara, Hiroto Yamashita
A 65-year-old man underwent radical cystectomy and cutaneous ureterostomy for bladder cancer. Because the patient had left complete duplex ureters,we modified the Toyoda method to construct the tubeless cutaneous ureterostomy with a unilateral stomal creation. The adhesive portion of both ureteral walls in duplex ureters was simultaneously cut approximately 5 mm from the distal end longitudinally,and the common sheath of the cut portion of the ureters was cut approximately 5 mm longitudinally in order to separate the two ureters...
November 2016: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/27914244/surgical-treatment-and-histopathological-assessment-of-advanced-cervicovaginal-carcinoma-a-prospective-study-and-retrospective-analysis
#19
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/27868098/neuroendocrine-tumor-of-the-ureter-a-zebra-among-horses
#20
Akshay Sood, Sean R Williamson, David A Leavitt
Primary neuroendocrine tumors of the upper urinary tract are extremely rare. We report a case of de novo small cell carcinoma of the ureter that presented masquerading as a distal ureteral stone. A 55-year-old lady presented to our clinic with 1 month history of right lower back pain and hematuria. Her history was notable for stage 1B mixed clear cell-endometroid cancer of the uterus status post radical abdominal hysterectomy with adjuvant radiotherapy, 7 years before the current episode. The patient had no evidence of recurrence...
2016: Journal of Endourology Case Reports
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