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

A unique case of a hitherto unreported antegrade intussusception of the ureter secondary to a lead pedunculated polypoid transitional cell tumor is presented. Radiological documentation and surgical verification are illustrated. An attempted explanation of the peculiar radiographic appearance proximal to and within the intussusception is given. The potential aid in preoperative recognition of such an entity is proposed.
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PMID:"Bell-shaped ureter," a radiographic sign of antegrade intussusception. 55 67

Ureteroscopy via the transurethral route and limited to the terminal ureter in women lends itself to inclusion in the urological armamentarium. The technique requires no equipment other than routine urological instruments and makes endoscopic inspection, biopsy and resection within the distal ureter possible. The procedure is done with the patient under anesthesia, following urethral dilation to 32F. With the aid of a small caliber cystoscope, 20F or smaller, straight Jewett sounds can be passed into the urethra alongside the cystoscope and directed under cystoscopic control into the ureteral orifice. The orifice is then dilated gently, using 12, 14 and, if necessary, 16F sounds. One of the standard pediatric cystoscopes can then be introduced easily into the orifice. Currently, the technique is being used routinely in women with transitional cell carcinoma involving the ureteral orifice or intramural ureter. In 1 patient a tumor arising from within the lower ureter was resected successfully using a pediatric resectoscope.
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PMID:Transurethral ureteroscopy in women: a ready addition to the urological armamentarium. 62 8

Differential diagnosis of small tumors of the ureter and renal pelvis is often difficult. Retrograde pyelogramm and tri-iodied contrast material is not effective in diagnosing small tumors and their surface condition. A retrograde pyelogram with a tantalum powder solution offers the following advantages: 1. Clearer representation of the tumor surface. 2. X-ray films show sharper contrast. 3. Small tumors could be seen that are not visible with routine contrast material. Preparation of tantalum solution and the technique of retrograde pyelogram are described.
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PMID:[Tantalum in diagnosing tumors of the ureter and renal pelvis. A preliminary report (author's transl)]. 65 6

The fibrous polyp of ureter is a rarely found benign neoplasm, which however is found more often in the last few years. The therapy consists of local resection of the polyp carrying part of ureter. By the knowledge of the disease diagnosis can be suspected from urography. Knowing this, nephroureterectomy, which is usually done in case of tumour of ureter, can be avoided. Problems of ureter polyps are shown by means of 3 own patients.
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PMID:[Ureteral polyps]. 66 8

A study ia mde of 15 patients with a known neoplasia: 2 retroperitoneal tumours, 5 lymphomas, 3 prostate neoplasias, 3 seminomas and 2 uterus neoplasias; with displacement of the ureter and in some cases ectasia of the excretion system. The displacement was always one-sided and most frequently found in the lower third of the ureter. Ectasia was found in two patients; we have never found this in any patients without a known neoplasia. Adenopathies were the most frequent cause of inferior ureter deviation but in only one case did they infiltrate into the wall and they were more constant on the right side. These cases are compared with other patients suffering from different pathologies, some of which are also neoplastic but in which no displacement or ectasia appeared even when the retroperitoneum was affected, and with another group of patients in whom there was found to be ureteral displacement or ectasia without any retro- or intraperitoneal pathology.
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PMID:[Comparative study of ureteral displacements]. 69 21

A case is reported of apparent radiologic demonstration of a communication between a completely obstructed distal ureter and its draining lymphatics in a patient with invasive bladder tumor involving the ureteral orifice.
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PMID:Ureterolymphatic backflow. 71 12

Nine patients with injury to the pelvic portion of the ureter successfully underwent the psoas-bladder hitch procedure and tunnelization as an antireflux measure. Of these 9 patients 1 had a Boari bladder wall flap next to the hitch procedure to further elongate the posterolateral corner of the bladder and to bridge a ureteral defect more than 5 cm. Postoperatively, 2 patients had ureteral reflux on the side of repair and 1 had reflux on the opposite side, which was caused by excision of the bladder tumor and damage of the muscle layers backing the undamaged ureter.
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PMID:Psoas-bladder hitch procedure: our experience with repair of the injured ureter in men. 80 46

The cobra-shaped distal ureter is not pathognomonic of a ureterocele. It may be seen with incomplete distal ureteral obstruction owing to tumor or calculus. The appearance of the wall surrounding the dilated distal ureteral segment is a more important finding to differentiate a ureterocele and a pseudoureterocele. The wall of a ureterocele is thin, while the lucency surrounding a pseudoureterocele is thicker and poorly defined.
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PMID:Ureterocele and pseudoureterocele: cobra versus cancer. 87 Jul 5

In 41 cases of roentgenologic filling defects in renal pelvis and ureter, which could not be determined exactly preoperatively, we could confirm the diagnostic value of cytology from washings of renal pelvis and ureter (lavage cytology), especially in preoperative diagnosis of carcinoma of renal pelvis and ureter. Ten of fourteen tumors (71%) were detected by this method. The diagnostic reliability increased with tumor-stage and was more accurate than the normal exfoliative urinary cytology. In five cases of hypernephromas invading the renal pelvis lavage cytology was not successful and we had obtained only false negative results. In roentgenologic filling defects that were not tumor-induced especially uric acid stones, inflammatory processes, blood clots and renal cysts, we had no false positive results. Our findings are discussed together with the literature.
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PMID:[Experiences with lavage cytology from renal pelvis and ureter (author's transl)]. 89 41

Selective renal arteriography was done in 5 patients with transitional cell carcinoma of the renal pelvis and upper ureter. In 2 cases, the presence of tumor vessels was unequivocally diagnostic. In the remaining 3 cases, the arteriographic changes were not as prominent but were suggestive of neoplasm and were helpful in differentiating other causes of filling defects in the collecting system.
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PMID:Angiographic aspects of tumors of renal pelvis and ureter. 94 79


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