Abstract
Duplicated ureter is a frequent malformation that occurs in approximately 1 in 20 people. We herein report the detailed case of bilateral duplicated ureter in which two ureters originated from a single renal pelvis and merged just proximal to the ureterovesical junction.
Highlights
The kidneys are the main organs of the urinary system
We report the detailed case of bilateral duplicated ureter in which two ureters originated from a single renal pelvis and merged just proximal to the ureterovesical junction
Duplicated ureters descended without following the Weigert-Meyer law, and merged at 30 mm below the origin of the left common iliac artery before joining the bladder (Figure 1a, 1b, and 2)
Summary
The kidneys are the main organs of the urinary system. The renal hilum is the entry and exit site for structures servicing the kidneys: vessels, nerves, lymphatics, and ureters. The renal artery originates from the aorta at the area between L1 and L2, just inferior to the origin of the superior mesenteric artery (SMA) These arteries are typically posterior to the renal veins and anterior to the renal pelvis. The left renal vein is longer and crosses the midline anterior to the abdominal aorta and posterior to the SMA. This vein receives the left testicular or ovarian vein from below, the left suprarenal vein from above, and the lumbar vein before joining to the inferior vena cava. We report the detailed case of bilateral duplicated ureter in which two ureters originated from a single renal pelvis and merged just proximal to the ureterovesical junction. The renal parenchyma was crushed using forceps to examine the anatomical connections between the ureters and renal pelvis
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