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

A case is presented of an abdominal mass created by massive ureteral dilation in an infant with VATER association. Curiously, only the terminal portion of the ureter was dilated.
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PMID:Giant ectopic ureter presenting as abdominal mass in infant. 362 67

The unusual delivery of a dead second twin with rare malformations is presented. The first twin, born live following a normal labor, had no malformations. The birth of the second twin was obstructed by massive ascites, and its abdomen had to be perforated before delivery. The sex could not be determined due to lack of the internal genitalia and the fetal appearance of the external genitals. The left kidney and ureter were hypoplastic. The right ureter and distal part of the colon were dilated and opened into a large primitive cystic cloaca without communication to the exterior. The ascites was probably caused by the urinary obstruction. These malformations probably represent one of the earliest arrested developments of the embryonic hindgut. The presence of a tracheo-esophageal fistula and a single umbilical artery, together with the anal atresia and the renal anomalies, could indicate that the anomalies formed part of the VATER association.
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PMID:Twins discordant for vater association. Obstructed labor of the second twin due to ascites and persistent cloaca without communication to the exterior. 372 44

We report a renal transplantation with uretero-ureterostomy to a normal ureter in a patient with VATER syndrome who had agenesis of the ipsilateral kidney. Anomalous insertion of the native ureter into the ejeculatory duct was subsequently identified when his post-operative course was complicated by an ureteric leak and hydronephrosis. To our knowledge, this anomaly has not been previously reported. Transplant function is now excellent following temporary percutaneous nephrostomy. Contrast delineation of genito-urinary anatomy is recommended, before utilizing existing anatomical structures in the urinary tract, in patients with VATER syndrome.
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PMID:Anomalous ureteral insertion in VATER syndrome complicating renal transplantation. 759 1

By exposing rat fetuses to adriamycin prenatally, a rat model of VATER association has been created. Absence of the fetal bladder is prominent and the kidneys show features of chronic obstruction with hydronephrosis/hydroureter, loss of parenchyma, fewer glomeruli, and less differentiation. The aim of this study was to elucidate this rat model, to determine exactly when the changes in the kidneys develop, hopefully thereby to expand our understanding of congenital obstructive uropathy. Timed-pregnant Sprague-Dawley rats were injected intraperitoneally with adriamycin on days 6-9 of gestation. The control group received saline. Fetuses were recovered on gestational days (GDs) 20, 19, 18, 17, 16, 15, 14, 12, and 10 (total, 120 control, 121 treated). Macroscopic features were determined. Serial sections were then taken and stained with hematoxylin and eosin. Comparisons were made under light microscopy. The metanephric kidney first became apparent at GD12. The development of the control and treated kidneys appeared similar till GD18. Beyond this day, the treated kidneys exhibited increasing degrees of distension of Bowman's capsule, ducts, and subsequently pelvis and ureter. There were fewer levels of glomeruli, which were also less differentiated. Less differentiation was also noted in the medulla, and with time this became thin in comparison to the control kidneys. By GD20, the renal pelvis was grossly dilated with a blunted papilla, and the renal parenchyma was thin. Prenatal exposure of rat fetuses to adriamycin results in kidneys that are chronically obstructed, as the majority of the fetuses show absence of the bladder. Absence of renal dysmorphology until GD18, when urine is first produced, suggests strongly that the effect of adriamycin on the kidney is indirect, via agenesis of the bladder and secondary to backpressure from early urine production. This is a unique, simple, and reliable model of fetal obstructive uropathy and will be very useful to facilitate further investigation into its pathophysiology and to explore new treatment options.
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PMID:Ontogeny of the VATER kidney in a rat model. 1516 39