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

We report the findings in a fetus terminated because of multiple abnormalities diagnosed on ultrasound, including asymmetry of the limbs, a hypoplastic diaphragm, unilateral duplex kidney with a double ureter, unilateral cystic kidney, and congenital heart disease including total pulmonary atresia. Cytogenetic studies showed an unbalanced translocation of the long arm of the X chromosome to chromosome 21, resulting in a 46,XY,dic t(X;21)(p11.1;p11.1) karyotype. The cytogenetics were confirmed by non-isotopic in situ hybridisation using probes specific to pericentric alphoid repeats. Parental chromosomes were normal indicating this to be a de novo translocation. It is suggested that the inactivation of the long arm of the X chromosome has resulted in an effective monosomy for chromosome 21.
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PMID:Necropsy findings in a fetus with a 46,XY,dic t(X;21)(p11.1;p11.1). 164 Apr 34

Cystic kidney dysplasias (multicystic kidney disease) are differentiated from hyperplastic and ectatic cystic kidney diseases by means of pathogenesis in order to simplify the common classification. Six cases of cystic kidney dysplasia are reported (1 child and 5 adults) and in a review of the literature diagnostic and therapeutic strategies are discussed. A characteristic radiological sign is the clublike++ deformation of the rudimentary ureter. Nephrectomy is indicated in case of symptoms such as pain, hypertension or recurrent urinary tract infections or in case of atypical cysts with a risk of malignancy.
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PMID:[Differential diagnosis of cystic kidney dysplasias]. 182 34

The acute effects of extracorporeal shock-wave lithotripsy (ESWL) on morphology and function of the kidney were evaluated by excretory urography, quantitative radionuclide renography (QRR), and magnetic resonance imaging (MRI) in 33 consecutive patients. Excretory urograms demonstrated an enlarged kidney in seven (18%) of 41 treatments and partial or complete obstruction of the ureter by stone fragments after 15 (37%) of 41 treatments. Total effective renal plasma flow (ERPF) was not changed after ESWL, but the percentage ERPF of the treated kidney was decreased by more than 5% in 10 (30%) of 33 cases. QRR images showed partial parenchymal obstruction in 10 (25%) of 41 treated kidneys and total parenchymal obstruction in 9 (22%). MRI disclosed one or more of the following abnormalities in 24 (63%) of 38 treated kidneys: (1) loss of corticomedullary differentiation, (2) perirenal fluid, (3) subcapsular hematoma, (4) hemorrhage into a renal cyst, and (5) unexplained abnormalities. Treated kidneys were normal by all three imaging methods in 26% and abnormal by one or more tests in 74% of cases. The morphologic and functional changes are attributed to renal contusion resulting in edema and extravasation of urine and blood into the interstitial, subcapsular, and perirenal spaces.
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PMID:Renal morphology and function immediately after extracorporeal shock-wave lithotripsy. 387 31

During a one-year period (from April 1992 to April 1993), 294 patients with the complaint of ureteric colic seen at the Emergency Department of Tan Tock Seng Hospital were investigated with a plain X-ray of the kidney, ureter and bladder (KUB), urinary analysis (urine FEME) and subsequently intravenous urogram (IVU) at the outpatient clinic. The results showed that majority (73%) of the patients were male. Sixty percent of the cohort were in the age group 30-50 years. After evaluation, it was found that only 114 (39%) of the patients with ureteric colic had abnormal IVU. Among these patients, 99 were diagnosed to have calculus disease, 12 with urothelial tumours, 1 with renal cyst and 2 had no pathology detected. Nevertheless most (72%) of the patients did not require intervention. In addition, it was noted that if the KUB or urine FEME was positive, the chances that a urological pathology was present were 72% and 91% respectively. However, if both of them were negative, the chance that a pathology would not be present was 93%. This suggests that patient selection is very essential to avoid unnecessary investigations.
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PMID:Ureteric colic: value of initial investigations and the outcome. 757 15

We report a case of bilateral multicystic kidney and left ureteropelvic junction (UPJ) obstruction in a female infant. She was diagnosed to have severe cystic disease from 20 weeks of gestation. After birth with cesarean section, she was transferred to the neonatal intensive care unit (NICU) of our hospital. One day after birth, she was referred to our department for progression of azotemia. We placed a nephrostomy catheter into the largest renal cyst, but it did not work. One week later, we placed another nephrostomy catheter into another cystic lesion inside of the first one. It worked well for nine months and azotemia was improved. At the age of nine months her upper urinary tract was reconstructed by pyeloplasty. We observed peristalsis of ureter and first urination from bladder.
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PMID:A case of infant with bilateral multicystic kidney and ureteropelvic junction obstruction; surgical treatment after percutaneous nephrostomy. 807 60

Doppler-sonography was performed in 16 newborns with prenatally diagnosed unilateral cystic renal malformation. 11 babies with multicystic dysplastic kidneys showed doppler-sonographically reduced systolic flow velocities and elevated resistive index (RI) [RI = 90-100%] or lack of obtainable perfusion signals. 4 of them had to undergo nephrectomy, the other asymptomatic patients could be managed conservatively, spontaneous regression could be observed. 5 other infants suffering from cystic nephroma, severe ureteropelvic junction obstruction, hudge bleeding of the adrenal gland and hydronephrosis due to ectopic ureter, having been prenatally presented as "cystic renal malformations", initially showed normal systolic flow velocities within renal parenchyma and only slightly elevated RI (mean = 83%). By this they could be differentiated from multicystic kidney dysplasia. We therefore propose to use doppler-sonography for differential diagnosis of prenatally assumed cystic kidney malformations.
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PMID:[Color Doppler ultrasound in differential diagnosis of unilateral congenital cystic kidney abnormalities]. 814 48

We report a case of milk of calcium renal stone within a calyceal diverticulum in the patient with left ureteral tumor. The patient was a 77-year-old-man with the chief complaint of asymptomatic microscopic hematuria. A plain film revealed round opaque calcific densities in the left kidney in the supine position and a dense crescent-shaped shadow with a horizontal border in the upright position. An intravenous pyelography showed left hydronephrosis and calculi within a calyceal diverticulum. Computed tomography in the supine position revealed layering of the calcifications in cystic lesion of the left kidney accompanied by left hydronephrosis due to a soft mass in the left ureter and a right renal cyst. Retrograde pyelography revealed a filling defect of the middle portion of the left ureter. Under the diagnosis of milk of calcium renal stone and left ureteral tumor, left total nephroureterectomy and partial cystectomy was performed. Pathological findings indicated transitional epithelium of the diverticulum wall and grade 1 transitional cell carcinoma of the left ureteral tumor.
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PMID:[Milk of calcium renal stone in a patient with ureteral tumor: a case report]. 826 71

Retroperitoneoscopic procedures were already being performed in the late 1970s. The clinical breakthrough of retroperitoneoscopy, however, was initiated in 1992 by the balloon-dissecting technique of Gaur, together with the experience gained with transperitoneal laparoscopic procedures in the upper retroperitoneum. We have modified the balloon-dissecting technique into a hydraulic video-optically controlled balloon dissection of the retroperitoneal space, and this procedure was recently further simplified. From December 1992 to December 1995 we performed 100 retroperitoneoscopic procedures in 98 patients (aged 4-82 years). Twenty-two patients had undergone previous abdominal surgery, 16 patients had been operated on for kidney and ureter problems. We performed 28 simple procedures (6 renal biopsies, 17 renal cyst resections, 4 ureterocutaneostomies, 1 foreign body retrieval), 65 difficult operations (47 nephrectomies, 5 nephroureterectomies, 5 nephropexies, 4 ureterolithotomies, 2x ureterolysis). There were also 9 complicated cases (5 heminephrectomies, 2 tumor nephrectomies, 2 dismembered pyeloplasties). Operating time, complications and conversion rate to open surgery mainly depended on the difficulty of the procedure and the personal learning curve, resulting in 50-90 min, 0% and 3.8%, respectively, for an easy retroperitoneoscopy, 90-210 min, 12% and 9.2% respectively for a difficult operation, and 180-390 min, 22% and 11%, respectively, for a very difficult procedure. Excluding the 17 patients with complications or conversion (unclear anatomy, extremely difficult dissection), the mean postoperative need for analgesics was 0.7 vials, and the mean hospital stay was 4.7 days. We have now passed most of our learning curve, and retroperitoneoscopy has become a standardized procedure that is a part of the training program for the experienced urologist.
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PMID:[Retroperitoneoscopy. Technique and experiences with the first 100 patients]. 871 23

Two cases of duplex kidney with ectopic urethral ureter are reported. Using abdominal ultrasound, the poorly functioning upper pole pelvis of the involved kidney was found to be sonolucent which may have been misinterpreted for a simple renal cyst. The corresponding ureter was dilated and drained into the proximal urethra. Ultrasound is an ideal imaging modality in the assessment of children with a duplicated renal system and may provide detailed information about this structural anomaly, such as the exact insertion of the ectopic ureter.
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PMID:Ultrasonic demonstration of ectopic urethral ureter in duplex kidney: report of two cases. 915 69

An abdominal mass was palpated in an asymptomatic adult during a routine medical check-up. Ultrasonography and computed tomography scan diagnosed a simple renal cyst, a mesenteric cyst and a seminal vesicle cyst. At laparotomy a complete ureteral duplication and a giant ectopic megalo-ureter were diagnosed. Other complications were ruled out in the follow-up. Ureterectomy without heminephrectomy was performed and the patient remains asymptomatic 5 years after surgery.
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PMID:Giant megalo-ureter and duplex kidney in an asymptomatic adult. 929 Jan 79


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