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

A case of true congenital diverticulum of the ureter associated with a solitary kidney is reported. The diverticulum was producing hydroureteronephrosis. Treatment consisted of excision of the diverticulum and repair of the narrowed area in the ureter. At 4-year followup there was no deterioration on excretory urography and renal function tests have remained normal.
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PMID:Case report: congenital ureteral diverticulum and solitary kidney. 11 61

Four patients with giant hydroureteronephrosis are reported to emphasize the massive proportions attained by a dilated ureter. Ureteral obstruction was congenital in each case; duplication with ectopic insertion was present in three of the four patients. In three patients the massively dilated ureter caused partial obstruction of the contralateral ureter. If ultrasound and/or computed tomography demonstrate a huge, septate, cystic structure crossing the midline, massive megaureter should be suspected. Antegrade puncture can be used to confirm the diagnosis.
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PMID:Congenital giant hydroureteronephrosis. 55 73

Experience with 20 simple ureteroceles in 18 children is reviewed. In most cases hydroureteronephrosis of various grades of severity was present. In 5 cases the related kidney was non-functioning. The ureterocele generally is seen on excretory urography, either as a positive cobra-head dilatation or as a negative filling defect in the cystogram when renal function is impaired. Cystoscopy is diagnostic but confusion may occur when a lax ureterocele is compressed and emptied or even everted by a high intravesical pressure. Expectant management is warranted in the absence of upper tract dilatation but operative intervention is needed in most cases. Nephroureterectomy may be unavoidable if the kidney is afunctional. Simple unroofing or incision of the ureterocele is followed by vesicoureteral reflux and ascending infection. The preferred technique is total excision of the ureterocele and reimplantation of the ureter into the bladder by an antireflux technique.
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PMID:Orthotopic ureteroceles in children. 65 Jul 66

A total of 481 cases of retroperitoneal fibrosis (RPF) presented in the literature have been reviewed. Ten additional cases from this hospital have been added. One etiological factor, methysergide, has been implicated in 12.4 percent of cases, but the majority remain unexplained. Characteristically, the patient will be male (2:1 ratio), in his 50's (30.9 percent), with vague lower back pain (34.2 percent) or possibly flank pain (34.0 percent). Physical examination usually will be unrevealing. The patient's serum chemistry probably will show some degree of azotemia (55.4 percent) and perhaps anemia (13.6 percent). The intravenous pyelogram characteristically shows bilateral hydroureteronephrosis (67.6 percent) or unilateral hydroureteronephrosis (20.3 percent) associated with medial deviation of the ureter due apparently to external compression of the ureter. Methysergide should be discontinued if implicated. Laparotomy for ureteral compression characteristically will reveal a dense, rubbery plaque in the retroperitoneum. Generous frozen section biopsies show fibrosis, usually with some chronic inflammation, suggestive of RPF. Careful inspection of retroperitoneal nodes and liver may reveal the presence of malignancy in 7.9 percent of patients. In the absence of malignancy, the ureters should lyse fairly freely and peristasis may return. If no malignancy is present on permanent sections of biopsy material, the patient can be given a fairly optimistic prognosis (cumulative mortality rate, 9 percent). Suboptimal improvement probably is an indication for steroid therapy and surgical re-exploration may become indicated. In these cases further search for malignancy should be undertaken.
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PMID:The clinical significance of retroperitoneal fibrosis. 84 63

Twenty-two patients with extensive pelvic irradiation underwent supravesical urinary diversion using a transverse colon conduit. Primary diseases were most often carcinoma of the cervix and urinary bladder. Indications for diversion included original treatment planning, radiation cystitis, vesicovaginal fistula, and ureteral obstruction. Operative mortality was low (4 per cent), and most complications were managed by further surgery. Normal upper urinary tracts usually remained normal after diversion; relief of existing hydroureteronephrosis was seen in a majority of patients. Stomal problems have been minimal, and renal function has remained normal or stable. The method affords the use of nonirradiated transverse colon as well as the ureter high above the field of pelvic irradiation and is the preferred diversion in such patients.
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PMID:Transverse colon conduit for supravesical urinary tract diversion. 99 48

The paper is concerned with the results of combined investigation of 157 women suffering from genital endometriosis, operated on for this disease. The involvement of the lower parts of the ureters in a pathological process was detected in 48 patients before operation and in 6 patients at operation. Comparison of x-ray and operative findings with histology specimens made it possible to define endogenous and exogenous forms of ureteral endometriosis and three variants of an x-ray picture in this pathology (the absence of abnormal changes of the urinary tract, hydroureter is over the narrowed part of the ureter, hydroureteronephrosis). The authors have shown a high informative value of combined x-ray investigation and the effectiveness of its use in clinical practice.
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PMID:[Radiologic diagnosis of urinary tract disorders in genital endometriosis]. 136 76

We retrospectively analyzed pre- and postoperative sonographic and medical records of 335 children who had surgical or endoscopic treatment at the ureterovesical junction, in order to determine normal and atypical sonographic appearances. Normal sonographic findings after ureteral reimplantation include thickening of the posterior bladder wall, pseudodiverticular sacculations, bladder asymmetry, and transitory hydroureteronephrosis. Short-term or persistent (lasting more than 1 month) hydroureteronephrosis, urinoma, hematoma, bladder lithiasis, and diverticula were abnormal findings, occurring in 17% of the patients. After partial ureteronephrectomies, visualization of the residual ureter on sonograms was not possible in cases without complications; in one patient, reflux of fluid dilated the residual ureter and made the ureter visible on sonograms. After endoscopic incisions, the masslike appearance of a collapsed ureterocele was observed. Submucosally injected Teflon always appeared as a curvilinear hyperechoic area with an acoustic shadow. Marked acute or persistent hydroureteronephrosis or ectopic intracavitary Teflon particles were observed in 2% of patients. Granuloma formation was considered likely in 5% of the patients when the area of injected Teflon material was longer than 12 mm on sonograms. Submucosally injected collagen appeared less echogenic than Teflon and showed no acoustic shadowing. The various normal sonographic appearances after treatment must be known in order to distinguish them from significant abnormalities. In patients with anatomic anomalies, such as short-term or persistent hydroureteronephrosis, urinoma, hematoma, and lithiasis, complementary uroradiologic examinations may be necessary to clarify the diagnosis.
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PMID:The ureterovesical junction in children: sonographic findings after surgical or endoscopic treatment. 154 3

This is a report of the fifth case of pelvic lipomatosis in Japan. A 52-year-old man presented himself in our hospital with a complaint of left lower abdominal pain on August 28, 1988. At that time, physical examination was unremarkable with the exception of mild obesity. The excretory urogram and retrograde pyelogram revealed left hydroureteronephrosis with tapering of the left lower ureter. Urethrocystogram showed an elongated posterior urethra with anterior displacement and elevation of the bladder. Computed tomography revealed excess of diffuse fatty tissue in the pelvic space with bladder deformity and rectal compression. Pelvic arteriogram demonstrated no neovascularity. A diagnosis of pelvic lipomatosis was established. He lost 6 kg by diet therapy. Left lower abdominal pain disappeared, but excretory urogram after eight months showed no changes.
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PMID:[A case of pelvic lipomatosis]. 185 93

The paper is concerned with the results of combined investigation of 157 women suffering from genital endometriosis, operated on for this disease. The involvement of the lower parts of the ureters in a pathological process was detected in 48 patients before operation and in 6 patients at operation. Comparison of x-ray and operative findings with histology specimens made it possible to define endogenous and exogenous forms of ureteral endometriosis and three variants of an x-ray picture in this pathology (the absence of abnormal changes of the urinary tract, hydroureter is over the narrowed part of the ureter, hydroureteronephrosis). The authors have shown a high informative value of combined x-ray investigation and the effectiveness of its use in clinical practice.
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PMID:[X-ray diagnosis of urinary tract diseases in genital endometriosis]. 187 58

In order to evaluate vesicourethral dysfunction in diabetic patients, urodynamic studies, IVP and urinalysis were performed on 173 diabetic patients (male 78, female 95) and 17 nondiabetic control cases. In addition to the classical findings as increased volume at the first desire to void and decreased maximum vesical pressure, diabetic patients showed varieties of vesicourethral dysfunctions such as overactive bladder (14.5%), low compliance bladder (11.0%) and loss of detrusor-external sphincter coordination (31.7%). Vesicourethral function of diabetics was classified in following 5 types by analysing the volume at first desire to void, volume at maximum desire to void, maximum vesical pressure, residual urine volume and bladder compliance. 1. Type 1, normal vesical function, 13 cases. 2. Type 2, vesical dysfunction with minimal residual urine, 49 cases. 3. Type 3, vesical dysfunction with residual urine, 66 cases. 4. Type 4, low compliance bladder, 20 cases. 5. Type 5, overactive bladder, 25 cases. Pyuria was observed in 59.8%, hydronephrosis was found in 10.9% and ectasia of lower ureter was found in 17.8% of diabetic patients. The highest incidence of pyuria and abnormality of the upper urinary tract were noted in Type 4 and followed by Type 3 and by Type 2 in decreasing order. Extent of pyuria and ectasis of the upper urinary tract showed statistically significant correlation with residual urine volume and detrusor-external sphincter coordination. When vesicourethral function was compensated by abdominal strain, the volume of residual urine is not elevated, but when the mechanism of compensation is lost or in the absence of detrusor-external sphincter coordination results in gradual accumulation of residual urine. In cases with long standing chronic urinary tract infection may results in fibrosis of the bladder wall with low compliance bladder. Fibrotic obstruction of uretero-vesical junction can cause hydroureteronephrosis and followed by renal function impairment. As vesical damage become irreversible at this end stage, proper management during early stage is crucial for management of diabetic patients. Cholinergic agent were effective to reduce residual urine volume in Type 3. alpha-blocking agent were effective to reduce residual urine volume in Type 3 and some cases of Type 4. In cases in which medication therapy failed to reduce residual urine, the clean intermittent catheterization was successful in control of urinary tract infection and upper urinary tract ectasis. Transurethral resection of the prostate and the bladder neck is indicated in the male patients with a large amount of residual urine in Type 3 and 4.
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PMID:[Vesicourethral dysfunction of diabetic patients]. 189 20


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