Related Experiment Video
Updated: Feb 3, 2026

A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction
Published on: December 20, 2014
Complete unilateral ureteral duplication encountered during intersphincteric resection for low rectal cancer
Alexandra Varlatzidou1,2, Maria Zarokosta1,2, Euthumios Nikou1
1University Department of Surgery, General and Oncologic Hospital of Kifissia ''Agii Anargiri', Athens, Greece.
Abstract:
Complete duplication of ureters is a very rare clinical entity that may either be asymptomatic or present with a variety of clinical findings. In the presented case a 51-year-old Caucasian female underwent an intersphincteric resection for low rectal cancer. Intraoperatively, during the standard bilateral recognition and mobilization of the ureters, complete unilateral duplication of the left ureter was incidentally detected, deriving from a single renal parenchyma. Such a congenital abnormality though constitutes a major risk-factor of accidental ureteral injury during operations including pelvis. Conclusively, meticulous exposure of both ureters combined with surgeons' unceasing awareness constitute the cornerstone of a safe operation.
Related Concept Videos
Centrosome Duplication
To ensure that each daughter cell receives a centrosome after cell division, centrosome duplication...
Gene Duplication and Divergence
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
Duplication of Chromatin Structure
The basic unit of the chromatin is the nucleosome, consisting of DNA wrapped around octameric histone proteins and short stretches of linker DNA separating individual nucleosomes. The histone proteins within the nucleosome have their...
Assessing Body Temperature - Rectal
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs
Cancer

