Indian Journal of Urology
CASE REPORT
Year
: 2013  |  Volume : 29  |  Issue : 1  |  Page : 75--76

Radiological seminal vesicle stones may actually be in the ureter


Brusabhanu Nayak, Nitin Abrol, Rajeev Kumar 
 Department of Urology, All India Institute of Medical Sciences, New Delhi, India

Correspondence Address:
Rajeev Kumar
Department of Urology, All India Institute of Medical Sciences, New Delhi 110029
India

Abstract

Calculi in blind-ending ureters are uncommon. We describe a rare case of calculi in the diverticulum of a blind-ending ureter associated with ipsilateral renal agenesis, which masqueraded as seminal vesicle calculi.



How to cite this article:
Nayak B, Abrol N, Kumar R. Radiological seminal vesicle stones may actually be in the ureter.Indian J Urol 2013;29:75-76


How to cite this URL:
Nayak B, Abrol N, Kumar R. Radiological seminal vesicle stones may actually be in the ureter. Indian J Urol [serial online] 2013 [cited 2020 Nov 28 ];29:75-76
Available from: https://www.indianjurol.com/text.asp?2013/29/1/75/109994


Full Text

 Introduction



Calculi in blind-ending ureters are uncommon. We describe a rare case of calculi in the diverticulum of a blind-ending ureter associated with ipsilateral renal agenesis, which masqueraded as seminal vesicle calculi.

 Case Report



A 44-year-old man presented with gross painful hematuria and frequency. He did not have lithuria, hematospermia or previous urinary tract instrumentation. He had received antitubercular therapy 20 years back for pulmonary tuberculosis and again 1 year before presentation to us. His urine examination and serum biochemistry were normal. Intravenous urogram showed multiple radio-opaque densities in right hemipelvis, normal left kidney and nonvisualized right kidney [Figure 1]. Micturating cystourethrogram revealed calcific densities in right pelvis and grade 1 right vesicoureteral reflux. A diagnosis of right renal agenesis with seminal vesical calculi was made and confirmed with magnetic resonance imaging (MRI) of the pelvis [Figure 2].{Figure 1}{Figure 2}

He was planned for endoscopic removal of seminal vesical calculi. On cystoscopy, a small stone was seen at the right vesicoureteral junction. Retrograde ureterography revealed that the right ureter was blind ending and dye was seen filling a diverticulum at the lower end of ureter [Figure 2]c, and d. Endoscopic incision of the diverticulum orifice was made. It was full with multiple, tiny, smooth-surfaced calculi which were removed endoscopically.

 Discussion



The adult kidney develops from the metanephros while the ureter and collecting system develop from the mesonephric duct. Contact of the ureteric bud with the metapehric blastema and reciprocal molecular signaling between the two is responsible for differentiation along the normal pathway. Unilateral renal agenesis develops due to a fault in the development of the ureteral bud which fails to form or make contact with the developing metanephros. [1] In most cases, the ipsilateral ureter is completely absent.

Ureteral diverticulae are usually blind-ending bifid ureters. Owing to altered peristalsis and ureteroureteral reflux of urine, calculi may form in these diverticulae. An extensive search of the English literature on Pubmed did not produce any report on calculi in blind-ending single ureters associated with ipsilateral renal agenesis. Radiologically, these resembled seminal vesical caluli. This ureter had reflux and stasis of urine in the diverticulum could have led to stone formation in absence of kidney on that side. [2] The diagnosis could only be established on cystoscopy and retrograde pyelography.

 Conclusions



In symptomatic patients with unilateral renal agenesis and associated anomalies of ureter, cystoscopy and retrograde pyelography should be performed to confirm the diagnosis and delineate the anatomy. Radiological findings may be misleading.

References

1Kamba T, Higashi S, Kamoto T, Shisa H, Yamada Y, Ogawa O, et al. Failure of ureteric bud invasion: A new model of renal agenesis in mice. Am J Pathol 2001;159:2347-53.
2Campbell MF. Diverticulum of the ureter. Am J Surg 1936;34:385.