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Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

An 85-year-old female was referred to our hospital with chief complaints of right flank pain and gross hematuria. Ultrasonography demonstrated right hydroureteronephrosis and a thumb head-sized solid mass in the lower third of the right ureter. Cystoscopy revealed papillary tumors near the right ureteral orifice. Under the preoperative diagnosis of right ureteral tumor and bladder tumor, transurethral resection of bladder tumor, right nephroureterectomy and partial cystectomy were performed. The gross specimen of the ureter contained a 5 x 3 x 1 cm, polypoid and smooth-surfaced tumor. The pathological diagnosis of the ureteral tumor was transitional cell carcinoma with inverted proliferation, grade 1 >> grade 2. On the other hand, the bladder tumor was papillary transitional cell carcinoma, grade 1. This is a case in which tumor development showed two different types.
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PMID:[Transitional cell carcinoma of the ureter with inverted proliferation accompanied with papillary bladder tumor: a case report]. 1182 74

Primary megaureter is visualized as a typical dilatation on urography. Adequate oblique projections should be added to depict the juxtavesical tract of normal caliber. In even the most severe forms pyelocaliectasis is absent or mild and the ureter is not tortuous. Sonography as well as fluoroscopy during urography shows hyperperistalsis in the dilated tract and aperistalsis in the juxtavesical tract. Cystography rules out vesicoureteral reflux. In prune-belly syndrome the megaureter is bilateral and massive with no evidence of obstructions. The sonographic finding of hydronephrosis or hydroureteronephrosis and the absence of vesicoureteral reflux on voiding cystography lead to the suspicion of ureteral valves, directly documented on urography as sharp and transverse filling defects. Retrograde pyelography can better define the obstructing area and documents the normality of the underlying tract. With this procedure, the valvular flaps appear with a superior convexity (like a small umbrella). MR-urography still to be validated clinically, will be able to provide novel perspectives.
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PMID:Megaureter and ureteral valves. 1269 59

Obstructive uropathy following renal transplantation is frequently reported. However, ureteral obstruction due to its incorporation in a sliding hernia is a rare event. Herein, we report a case of late graft hydroureteronephrosis secondary to a sliding hernia containing the transplanted ureter. The diagnosis was confirmed with the aid of magnetic resonance urography and antegrade urography. Following hernioplasty, a decrease of serum creatinine level was achieved with significant decompression of the system.
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PMID:Sliding hernia containing the ureter--a rare cause of graft hydroureteronephrosis: a case report. 1525 43

The incidence of inflammatory abdominal aortic aneurysm (IAAA) in a late review of the literature is estimated about 2-15% overall aortic aneurysms. In our data this type of aneurysm is 3.6 overall aortic aneurysms treated. In the majority of the cases, IAAA is juxtarenal or infrarenal. Ethiopathogenesis of IAAA till today is not certain. Recent hypothesis on IAAA attribute the same ethiopathogenesis in both atherosclerotic and inflammatory aneurysm. The interaction of genetic, environmental and infective factors should be able to determine an autoimmune inflammatory reaction of variable severity. 80% of the patients suffering from IAAA present abdominal or lumbar pain, loss of weight and increase of the RC sedimentation velocity. The IAAA's natural history goes to rupture. Entrapment of nearstanding organs totally involved in the fibrotic process is the most frequent complication. Usually there is a compression of the ureter and the duodenum with consequenced hydroureteronephrosis and bowel obstruction. Preoperative diagnosis is possible; CT scan and MRI guarantee and accuracy about 90%. Intraoperatively the external wall of IAAA appears whitish and translucent and always there are tenacious adhesion given by the avventital wounds inflammation. Confirm is given by the histological examination of the aneurysmatic wall and peravventitial tissues. Our experience and a late review of the literature concorde that surgical indication for the treatment of IAAA is the same for the atherosclerotic one. This conviction is supported by the fact that the diagnostic methodical evolution and the improvement in mininvasive surgical technique lowered perioperating morbility and mortaliy. We prefer, according with many authors, retroperitoneal approach to juxtarenal IAAA, instead of standardized transperitoneal access with xifo-pubical or transversal under costal incision. This approach offers some advantages as easier exposition of aorta, whose postero-lateral wall is hardly ever involved in inflammatory process, little duodenum's and left renal veins manipulation and low incidence of paralytic ileum and respiratory disease. Endovascular surgery hasn't in this moment any role in juxtarenal IAAA treatment because this type of aneurysm has inadequate proximal neck. In the future, probably, endovascular repair will be possible using a new type of endograft with renal legs. Often surgical treatment is inadequate to control retroperitorenal fibrosis and so surgeon has to use perioperating pharmacolocical therapy.
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PMID:[Approach to juxtarenal inflammatory aneurysms]. 1538 92

Localized amyloidosis in the ureter is a rare condition, in which immunoglobulin light chain is locally synthesized, causing thickening of ureteric walls by deposits of immunoglobulin-related amyloid. Since the clinical features of ureteral amyloidosis with ureteric stricture and/or hydroureteronephrosis closely resemble those of malignancy involving the ureters, nephroureterctomy is usually performed for this disease. We describe two aged patients with localized amyloidosis on the bilateral ureters. In both cases, left hydronephrosis with left ureteral stricture was found. They were treated with total nephroureterctomy and Alambda amyloid deposition was confirmed in the resected ureters. Several months later right ureteral stenosis was found. One patient was treated with percutaneous nephrostomy to preserve his renal function and the other with corticosteroids. This appeared to result in significant regression of the stenotic lesion. In both cases, all examinations for systemic involvement of organs were negative. Corticosteroids may be of use in treating immunoglobulin-derived localized amyloidosis in the ureters.
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PMID:Bilateral localized amyloidosis of the ureters: clinicopathology and therapeutic approaches in two cases. 1567 61

A 75-year-old hypertensive woman was referred with ultrasound findings of a 40 x 35 mm semi-solid right adnexal mass and right hydroureteronephrosis. She complained of headache and right-sided back pain. Computed tomography demonstrated a cystic adnexal mass that did not appear to originate from the right ovary and grade 2 hydroureteronephrosis. Magnetic resonance imaging indicated that the mass originated from the right ovary. Tumor markers were in the normal range. Exploratory laparotomy was performed to determine the origin of the lesion, and revealed a retroperitoneal mass obstructing the right ureter. The mass was completely removed and and the histopathologic diagnosis was paraganglioma.
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PMID:Pelvic retroperitoneal paraganglioma mimicking an ovarian mass. 1585 36

Primary megaureter presents a spectrum of findings ranging from mild, clinically unimportant, stable ureterectasis to severe, progressive obstructive hydroureteronephrosis. We report a patient with a double uterus and ipsilateral renal dystrophy. A previous imaging study had revealed a double uterus and obstructed left hemivagina, into which a single vaginal ectopic ureter inserted. On follow-up intravenous urography 8 years later, the left kidney was non-functioning, and there was segmental dilation of the distal right ureter. Transvaginal sonography with real-time scanning and Doppler were useful in exploring the morphological and functional status of this dilated distal ureter.
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PMID:Transvaginal sonography in the morphological and functional assessment of segmental dilation of the distal ureter. 1651 22

Ectopic ureter in a duplicated system in men is rare and rarely causes bilateral obstructive symptoms. The tendency of the ureter to dilate more than the caliceal system is unique to neonates and makes upper urinary diversions more challenging. However, alternative percutaneous diversions other than nephrostomy might be beared in mind in such cases with huge dilatation in ureters in suffering neonates. As discussed in this case percutaneous ureterostomy may be very effective and have a role in diagnosis and management of neonatal hydroureteronephrosis.
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PMID:Percutaneous ureterostomy as an effective diversion in a newborn. 1677 39

A 36-year-old Japanese woman who had been diagnosed as having systemic lupus erythematosus (SLE) at the age of 34 began to complain of severe bowel symptoms and developed severe hydroureteronephrosis. She had a history of idiopathic thrombocytopenic purpura. Biopsy specimens from her bladder showed interstitial cystitis. She was diagnosed as having lupus cystitis, and treated with intravenous methylprednisolone pulse therapy followed by oral prednisolone and ureter catheterization. Her urinary and bowel symptoms were alleviated and the level of hydroureteronephrosis improved. We note that cystitis could be a primary manifestation of SLE. Patients not only with SLE but also with some autoimmune diseases require careful urological evaluation when they complain of severe bowel symptoms.
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PMID:A case of lupus cystitis with a history of idiopathic thrombocytopenic purpura. 1702 7

The aim of the study was analysis of retroparietoscopic operations made in patients with renal cysts, anomalies of the kidneys, uretero-pelvic strictures, concrements of the upper third of the ureter to optimize treatment policy. A total of 29 patients were treated in the urological department (17 males, 12 females, age 23-70 years, mean age--49.7 years). Of them, 18--for renal cysts, 4--for ureteropelvic stricture (postoperative structure--1, ureterovasal conflict--2, high position of the ureter--1), postoperative stricture of the lower third of the left ureter--1, urolithiasis--5 (located in the upper third of the ureter--4, located in the pelvis and lower calyces of the dystopic left kidney--1), hydroureteronephrosis of the upper half of the double right kidney--1. Ultrasound scanning was followed by multispiral computed tomography. Retroparietoscopic method is characterized by limited positions of the instrumental trochar, absence of definite anatomic marks and difficulties in maintenance of necessary pressure in the cavity. Valid position of the trochars in the retroperitoneoscopic operation is a necessary condition of successful operation. In retroparietoscopic interventions the operative approach includes creation of the primary cavity, placement of trochars and creation of working cavity. Duration of retroperitoneoscopic operations ranged from 1 hour to 4 hours 30 min. Only short-term fever was a complication. Postoperative hospital stay was 1 to 7 days. Thus, retroperitoneoscopic operations are a good alternative to conventional surgery.
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PMID:[Characteristics and results of retroperitoneoscopic operations in urology]. 1705 76


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