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Case Discussion. Rounded filling defect within the left side of the bladder adjacent to the left VUJ. Feauters are of a ureterocele. Looking closely at the upper tracts you can see that both kidneys have duplicated collecting systems with dilated upper moieties (although both are partially cropped from the film). Duplicated collecting system ...
Intravenous pyelogram shows bilateral duplex kidneys. On the right side, upper moiety ureter enters distally and is associated with a ureterocele. A well-defined intravesical filling defect centred on the right vesicoureteric junction (cobra head sign) with mild proximal ureteric dilatation indicates a ureterocele.
13 de mar. de 2024 · The cobra head sign, also known as the spring onion sign, refers to dilatation of the distal ureter, surrounded by a thin lucent line seen in patients with an adult-type ureterocele. The cobra head appearance indicates an uncomplicated ureterocele. During an excretory phase of an intravenous urography, the lucent "hood" of the cobra represents ...
13 de mar. de 2024 · Citation, DOI, disclosures and article data. A duplex collecting system, or duplicated collecting system, is one of the most common congenital renal tract abnormalities. It is characterized by an incomplete fusion of upper and lower pole moieties resulting in a variety of complete or incomplete duplications of the collecting system.
24-25 weeks single live intrauterine fetus, with an obvious left-sided ureterocele (5 mm size) without hydronephrosis in the left kidney, giving "bladder in bladder" appearance. This requires monitoring to check the development of left-sided hydronephrosis or bladder outlet obstruction. Follow up ultrasound should be done in antenatal as well ...
Ureterocele, from the Greek (όυρητήρ and κήλη), literally means hernia of the ureter. It is the result of a congenital stenosis of the ureteral orifice and a concomitant weakness of the wall of the lower ureter so that there is a resultant ballooning of the terminal ureter into the bladder. This intracystic ballooning of the dilated ureter produces a characteristic defect on the ...
Age: 60 years. Gender: Female. ultrasound. US shows a cystic structure projecting into the bladder at the left ureteral orifice. Shadowing echogenic focus and color comet-tail artifact in keeping with a calculus within the cystic dilatation. Left hydroureteronephrosis. The right ureter had no obstruction and right ureteric jets are clearly seen.
