PMC5865617_01
(a) 99mTc-dimercaptosuccinic acid scintigraphy showed a defect behind the bladder and right renal agenesis. (b) T1-weighted magnetic resonance image demonstrating tubulocystic lesions (arrows) behind the bladder (asterisk). The high T1 signal intensity suggests proteinaceous content. (c) Three-dimensional magnetic resonance image.
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Contrast-enhanced abdomen computed tomography and 99mTc-dimercaptosuccinic acid scintigraphy showed a right ureterocele and right renal agenesis (Fig. 1a). Magnetic resonance imaging demonstrated tubulocystic retrovesical structures with T1 and T2 hyperintense content, and a fluid level suggesting proteinaceous or hematic content (Fig. 1b, c).
Voiding cystourethrography. (a) Before initiation of micturition. (b) When urinating. The dotted line indicates the ureterocele.
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In voiding cystourethrography, the ureterocele fell into the bladder neck at the time of voiding, which was thought to be the cause of the difficult urination (Fig. 2).
(a) and (b) Right vasoseminal vesiculography. (a) Multiple enlarged seminal vesicle cysts (arrow) are enhanced like beads from near the vas deferens. (b) A ureterocele and the right ureter (arrows) are contrasted. (c) Transcranial needle puncture of the ureterocele under transrectal ultrasound guidance. The asterisk indicates the ureterocele and the arrow the needle.
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In vasoseminal vesiculography, multiple enlarged seminal vesicle cysts were imaged from near the ampulla of the ductus vas deferens; then a ureterocele and the right ureter were visualized subsequently (Fig. 3a, b). We drained 40 mL of fluid from the ureterocele by transperineal puncture (Fig. 3c) and confirmed by cystoscopy that the ureterocele protruding into the bladder had shrunk.