Computed tomography detected pyelovenous backflow associated with complete ureteral obstruction

Takeshi Sano; Noriatsu Ichiba; Kimihiko Masui; Takao Haitani; Keita Takimoto; Yoichiro Kajita; Yasumasa Shichiri

doi:10.1002/iju5.12117

Computed tomography detected pyelovenous backflow associated with complete ureteral obstruction

IJU Case Rep. 2019 Sep 1;2(6):321-323. doi: 10.1002/iju5.12117. eCollection 2019 Nov.

Authors

Takeshi Sano^{1

2}, Noriatsu Ichiba³, Kimihiko Masui¹, Takao Haitani^{1

2}, Keita Takimoto¹, Yoichiro Kajita^{1

4}, Yasumasa Shichiri¹

Affiliations

¹ Department of Urology Otsu City Hospital Otsu Japan.
² Department of Urology Kyoto University Graduate School of Medicine Kyoto Japan.
³ Department of Radiology Otsu City Hospital Otsu Japan.
⁴ Kajita Urological Clinic Kyoto Japan.

Abstract

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.

Keywords: contrast‐enhanced computed tomography; hydronephrosis; pyelovenous backflow; ureteral obstruction; ureteroneocystostomy.

Publication types

Case Reports