Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A 76-year-old woman with history of cholecystectomy, hysterectomy, and vesicourethral suspension presented with acute lumbar backache and discomfort in the lower abdomen and severe nausea, with frequent vomiting, but without any associated fever. Physical examination revealed knocking tenderness at the left costal-vertebral angle. The patient's serum white blood cell count was 14,900/mm(3) and the results of other laboratory tests, including urinalysis, were normal. Non-enhanced computed tomography revealed left hydroureteronephrosis and obstruction of the distal left ureter with herniation into the sciatic foramen. A left ureteral stent was inserted with a double-J stent. The stent was removed after 2 months and thereafter the patient did not experience any recurrence.
 ...
PMID:Ureterosciatic hernia successfully treated by ureteral stent placement. 2183 50

Both antegrade stenting and retrograde stenting for retroperitoneal laparoscopic dismembered pyeloplasty in children have many disadvantages. In this work, we tried using an alternative technique of modified antegrade (MAG) double-J stenting for retroperitoneal laparoscopic dismembered pyeloplasty in children under 5 years old, analyzed our results using the conventional antegrade (CAG) and the MAG techniques of stent insertion for this procedure, and reported our experience with these techniques. Between December 2002 and July 2010, 77 children under 5 years old with ureteropelvic junction obstruction underwent retroperitoneal laparoscopic dismembered pyeloplasty. CAG and MAG double-J stenting were attempted, in the first 36 cases (mean age 27.1 months) and the following 41 cases (mean age 25.4 months), respectively. The stents were removed 4-6 weeks later via cystoscopy. Follow-up studies were performed with ultrasonography and intravenous urography at 3 and 12 months postoperatively. The results showed that successful stent placement without malpositioning was achieved in 31 of 36 (86%) and all 41 (100%) cases, in the CAG and MAG groups, respectively. The common factor of unsuccessful stent was the inability to across the ureterovesical junction. The mean stent insertion time was 10 min 54 s and 12 min 46 s in the CAG and MAG groups, respectively. The mean operating time was 176 min and 185 min in the CAG and MAG groups, respectively. No stent malpositioning occurred in the MAG group; in the CAG group, two children had a malpositioned stent in the distal ureter and one child presented with a severe hematuria. Twelve months follow-up showed no new onset of hydroureteronephrosis and hydronephrosis. Thus we concluded that the MAG double-J stenting seems more reliable than CAG stenting for retroperitoneal laparoscopic dismembered pyeloplasty in children under 5 years old, with greater success and lower complication rates.
 ...
PMID:Technical modifications of double-J stenting for retroperitoneal laparoscopic dismembered pyeloplasty in children under 5 years old. 2185 69

Retroperitoneal sarcoma represents approximately 12-15% of all sarcomas and between 0.2 and 0.5% of all neoplasia. They very rarely metastasize, and the main cause of death is local recurrence. Radiotherapy and chemotherapy still do not represent valid therapeutic alternatives, therefore radical surgery remains the only valid option. We would like to present the following case of a 48-year-old male patient. After episodes of right-side renal colic, a 19x16x19 cm mass was found, which was palpable in the right quadrants, englobed the right ureter and caused ipsilateral hydroureteronephrosis of medium grade. Surgery allowed total excision of this neoplasm (which was tenaciously attached to various organs), with the sacrifice of the right kidney. The final histological examination on a sample taken during surgery confirmed that the neoplasm was a spindle-cell sarcoma at an intermediate grade of malignancy. One year after surgery the patient is disease free.
 ...
PMID:[Retroperitoneal neoformation: case study]. 2194 37

A 11-year-old boy showed gross hematuria and left flank pain. Ultrasonography and CT revealed left hydroureteronephrosis, and he was referred to us for the further evaluation. MRI revealed left hydroureteronephrosis with filling defect at the distal end of the dilated ureter suggesting ureteral polyp. Open surgery was performed with the diagnosis of mid-ureteral obstruction. In the operative findings, multiple stalks of ureteral polyps arose from the entire ureteral wall over 5 cm in length at the site of ureteral obstruction. Mid-ureter with polyps was completely resected, and end-to-end anastomosis was performed. The pathological diagnosis was fibroepithelial polyp of the ureter.
 ...
PMID:[Case of mid-ureteral fibroepithelial polyps in a child]. 2239 88

The diagnosis of carcinoid tumor of the appendix is rare; the involvement is often limited to the gastrointestinal tract. Extramural involvement of surrounding structures has been reported; however, direct involvement of the ureter has not been reported. We report a case of carcinoid tumor of appendix involving the ureter and causing obstruction. To our knowledge, this is the first case report of such presentation in available literature. A 23-year-old woman who presented with right loin pain and intermittent fever for 1 week duration and found to have gross hydroureteronephrosis on the right side due to a mass compressing the ureter.
 ...
PMID:Ureteric obstruction: A unique case. 2255 28

A rare case of congenital entrapment of the left ureter in an iliac bone canal causing left side hydroureteronephrosis is reported. The patient represented a case of congenital ureteral entrapment in a reversed C-shaped iliac bone canal that was missed before his laparoscopy. The ureter also had a retro-iliac course. The patient was successfully managed by laparoscopic ureteroureterostomy. Interestingly, in our experience, laparoscopy provided a minimally invasive milieu for both diagnosis and correction of this rare cause of obstructive uropathy.
 ...
PMID:Laparoscopic ureteroureterostomy for the management of obstructive uropathy caused by congenital ureteric entrapment in the iliac bone. 2292 62

Ectopic ureters are rare congenital mesonephric duct malformations with a higher prevalence in women than men. In women, ectopic ureters are often associated with a duplicated collecting system, whereas in men, ectopic ureters usually drain a single system and are associated with renal dysplasia and obstruction. Presentation and diagnosis generally occurs in the pediatric age group. Herein, we present an unusual case of delayed diagnosis of ectopic insertion of the upper pole ureter in a completely duplicated left kidney causing massive hydroureteronephrosis in an adult man.
 ...
PMID:Unusual presentation of ectopic insertion of duplicated collecting system in an adult male. 2354 Aug 62

We report on a rare case of delayed presentation of ureteric injury with a transobturator mesh kit for anterior vaginal wall prolapse repair along with conventional vaginal pelvic reconstructive surgery: a case of a 56-year-old multiparous, postmenopausal woman with a body mass index of 22.1 kg/m, who had continuous leakage of urine per vagina 28 days after vaginal hysterectomy, mesh-augmented anterior repair with Avaulta Plus Anterior support system kit (CR Bard Inc, Covington, Ga), and sacrospinous ligament fixation for stage IV pelvic organ prolapse. Pelvic computed tomographic scan with contrast revealed an intact bladder, right hydroureteronephrosis, and right ureterovaginal fistula. Immediate laparotomy performed revealed that the right lower mesh arm was entangled with the distal end of the right ureter, 1.5 cm from the ureteric orifice. Category, time, site classification was 4CaT2S5. Right ureteric reimplantation was performed uneventfully. We herein emphasize that the development of a delayed type of ureteric injury is a possible associated complication of transobturator mesh surgery for the prolapse.
 ...
PMID:A delayed type of ureteric injury developed after transobturator mesh procedure for massive prolapse. 2361 38

The study was aimed to the selection of patients, in which endoscopic treatment of vesicoureteral reflux (VUR) is contraindicated due to the high risk of the formation of obstructive hydroureteronephrosis (HUN). From June 1991 to December 2011, endoscopic treatment of I-V degree VUR was performed in more than 4,000 children aged 4 months to 17 years. In period of wide use of endoscopic technique, obstructive HUN occurred in average in 1 (0.5%) case of 200 VUR (5 cases in 5 children), only in IV degree reflux and in only in children with initial subcompensated obstruction of ureterovesical segment, which was manifested as flask-shaped extension of juxtavesical ureter on intravenous urograms. Ureterocystoneostomy allowed to resect the terminal ureter with encapsulated implants in 4 out of 5 children. The macroscopic and histological examination of biopsy specimens confirmed the correct position of the implant in all cases, which excluded the technical complications. Thus, persistent decompensation of urodynamics of upper urinary tract is the result of increased pressure profile of the terminal ureter, inevitable in the endoscopic treatment of UVR, in children with initial obstruction of ureterovesical segment. Therefore, endoscopic treatment is contraindicated for children with high-degree reflux and radiological signs of obstruction of the terminal ureter.
 ...
PMID:[Obstructive complications of endoscopic treatment of vesicoureteral reflux in children]. 2398 55

We report a case of xanthogranulomatous pyelonephritis (XGP) complicated by shaped urolithiasis, severe hydroureteronephrosis and kidney exclusion treated by laparoscopic-assisted nephroureterectomy. A 9 year-old boy was referred to us for recurrent episodes of urinary tract infection, abdominal pain and severe hydronephrosis. Abdominal CT and a Tc-99m MAG3 scan showed a non-functioning obstructed kidney with shaped urolithiasis of the distal ureter. XGP was suspected, and nephroureterectomy was performed by laparoscopic distal ureterectomy and open extraperitoneal nephrectomy. This technique avoided the need for a more extended nephrectomy incision or even a second iliac incision. It also ensured complete excision of the distal ureter with minimal risk of developing the ureteral stump syndrome, which sometimes follows nephroureterectomy. We believe that laparoscopic-assisted nephroureterectomy may be a suitable technique in those cases of difficult nephrectomy where a ureteral stump syndrome is likely to develop.
...
PMID:Laparascopic-assisted nephroureterectomy for shaped urolithiasis and xanthogranulomatous pyelonephritis: case report and review of literature. 2419 78


<< Previous 1 2 3 4 5 6 7 8 9 10 Next >>