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14 de may. de 2024 · Pelviureteric junction (PUJ) obstruction/stenosis, also known as ureteropelvic junction (UPJ) obstruction/stenosis , can be one of the causes of obstructive uropathy. It can be congenital or acquired with a congenital pelviureteric junction obstruction being one of the commonest causes of antenatal hydronephrosis.
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11 de may. de 2024 · The vesicoureteric junction inserts at an angle into the bladder trigone. This configuration closes off the ureteral orifice as the bladder expands. If there is alteration of the angle, this may lead to vesicoureteral reflux. The Chwalla membrane is a thin membrane between the ureteric bud and urogenital sinus .
30 de abr. de 2024 · Circumcaval ureter, also known as retrocaval ureter, is a term used to describe an abnormal course of a ureter that encircles the inferior vena cava. Both of these terms are somewhat misleading, as this configuration is considered a developmental anomaly of the inferior vena cava (IVC).
18 de may. de 2024 · Each kidney has a single ureter that allows urine to pass into the bladder. Ureteroceles are a congenital abnormality that causes a ureter to swell. This ballooning at the end of one or both ureters prevents normal urine flow between the kidneys and bladder. Ureteroceles don't always cause symptoms.
5 de may. de 2024 · The ureters are bilateral thin tubular structures with a 3 to 4 mm diameter that connect the kidneys to the urinary bladder (see Image. Posterior Thoracolumbar Surface Anatomy). These muscular tubes transport urine from the renal pelvis to the bladder. The ureter's muscular layers are responsible for the peristaltic activity that moves urine from the kidneys to the bladder.
30 de abr. de 2024 · Retrograde urine flow from the bladder to the upper urinary tract is known as vesicoureteric reflux. This article illustrates the anatomy and pathophysiology of vesicoureteric reflux, its clinical presentation, and various diagnostic methods.
6 de may. de 2024 · Posterior urethral valves are the most common cause of urinary tract obstruction and chronic kidney disease resulting from obstructive uropathy in the pediatric population.[1][2][3][4] The valves are actually obstructing membranous folds situated within the posterior urethral lumen attached to the verumontanum. These folds are found exclusively in male patients.
