Peer-reviewedCC BY-NC-NDUrology case reports
Blind-ending bifid ureter mimicking stone obstruction during emergency urinary drainage: A case report.
- 1Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Abstract
A blind-ending bifid ureter is a rare congenital urinary tract anomaly. A 63-year-old woman with obstructive pyelonephritis due to a right ureteral stone underwent emergency urinary drainage. Retrograde pyelography demonstrated contrast opacification only up to the right upper ureter, and a guidewire failed to advance beyond the upper ureter. Percutaneous nephrostomy was therefore performed. During subsequent transurethral ureterolithotripsy, ureteroscopy revealed that the guidewire had entered a blind-ending branch, while the stone was located within the ureteral branch communicating with the renal pelvis. A blind-ending bifid ureter may mimic ureteral obstruction caused by ureteral stones and complicate transurethral urinary drainage.
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BibTeX
@article{hasegawa2026blindending,
title = {{Blind-ending bifid ureter mimicking stone obstruction during emergency urinary drainage: A case report.}},
author = {Yukino Hasegawa and Junki Harada and Itsuho Ito and Yuichiro Nakamura and Kensuke Mitsunari and Ryoichi Imamura},
journal = {Urology case reports},
year = {2026},
month = oct,
doi = {10.1016/j.eucr.2026.103654},
url = {https://europepmc.org/article/MED/42997503},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Blind-ending bifid ureter mimicking stone obstruction during emergency urinary drainage: A case report.
AU - Yukino Hasegawa
AU - Junki Harada
AU - Itsuho Ito
AU - Yuichiro Nakamura
AU - Kensuke Mitsunari
AU - Ryoichi Imamura
PY - 2026
DA - 2026/10/27
JO - Urology case reports
DO - 10.1016/j.eucr.2026.103654
UR - https://europepmc.org/article/MED/42997503
AB - A blind-ending bifid ureter is a rare congenital urinary tract anomaly. A 63-year-old woman with obstructive pyelonephritis due to a right ureteral stone underwent emergency urinary drainage. Retrograde pyelography demonstrated contrast opacification only up to the right upper ureter, and a guidewire failed to advance beyond the upper ureter. Percutaneous nephrostomy was therefore performed. During subsequent transurethral ureterolithotripsy, ureteroscopy revealed that the guidewire had entered a blind-ending branch, while the stone was located within the ureteral branch communicating with the renal pelvis. A blind-ending bifid ureter may mimic ureteral obstruction caused by ureteral stones and complicate transurethral urinary drainage.
SN - 2214-4420
ER -