DDx
Media Gallery
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Ectopic ureter. Cystoscopic view of an ectopic ureter entering the bladder neck.
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Single-system ectopic ureter. A retrograde pyelogram of the ectopic ureter opacifies the dilated system. The ureter is obstructed when the sphincter is closed but opens to drain when the sphincter opens during voiding.
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Ectopic ureter to urethrovaginal septum. This patient presented with continuous drip incontinence. The blue catheter is positioned in the urethra. The gray catheter is positioned in the orifice of the ectopic ureter.
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Duplicated ectopic ureter to the urethrovaginal septum. Retrograde injection of contrast into the orthotopic lower pole (white arrow) ureteral orifice and ectopic upper pole (black arrow) orifice simultaneously opacifies both systems.
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A large ureterocele is seen as a filling defect on the early filling images of this cystogram.
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Bilateral single-system ureteroceles. The collecting systems and their associated ureteroceles are opacified on intravenous pyelography (IVP). Multiple stones in the ureteroceles may be discerned within the ureteroceles (white arrows) as filling defects.
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Bilateral ureteroceles with stones. This ultrasonogram at the bladder level depicts thin-walled, bilateral ureteroceles. Echogenic stone material can be seen in the left ureterocele.
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Left duplicated kidney with upper pole ureterocele. This renal scan shows the typical findings of an upper pole duplicated system subtended by a ureterocele. The left upper pole (black arrow) shows minimal uptake when compared with the left lower pole or right kidney.
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Renal duplication. Marked upper pole hydronephrosis with minimal dilation of lower pole, indicative of a duplicated collecting system.
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Reflux into lower pole: A voiding cystourethrography (VCUG) that demonstrates reflux into the lower pole ureter with classic "drooping lily" configuration.
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Female infant with acute pyelonephritis. The ultrasonography findings are notable for left hydronephrosis.
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