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Author Spotlight: Developing a Bedside Protocol for Kidney and Genitourinary Ultrasonography
Published on: June 21, 2024
Computed tomography detected pyelovenous backflow associated with complete ureteral obstruction
Takeshi Sano1,2, Noriatsu Ichiba3, Kimihiko Masui1
1Department of Urology Otsu City Hospital Otsu Japan.
Introduction:
Pyelovenous backflow is a rare condition resulting from an increase in pressure in the renal pelvis due to urinary obstruction.
Case Presentation:
A 49-year-old woman developed high-grade fever and right-sided hydronephrosis after undergoing hysterectomy. Although the hydronephrosis was mild, retrograde pyelography revealed complete obstruction of the right ureter. Excretory phase scans of contrast-enhanced computed tomography showed pyelovenous backflow, which presumably decompressed the hydronephrosis. The pyelovenous backflow immediately disappeared after ureteroneocystostomy.
Conclusion:
We were presented with a patient showing pyelovenous backflow detected by contrast-enhanced computed tomography, which completely disappeared after ureteral obstruction release.
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