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[Crossed fused kidney with ectopic ureter: a case report]
S Kamata1, T Yamada, N Ichiyanagi
1Department of Urology, Saitama Medical Center, Saitama Medical School.
Hinyokika Kiyo. Acta Urologica Japonica
|May 12, 2000
Summary
This study presents a rare case of a single ectopic ureter in a child, draining into a mesonephric duct cyst. Helical computed tomography (CT) with 3-D reconstruction effectively visualized this complex urinary tract anomaly.
Area of Science:
- Urology
- Medical Imaging
- Pediatric Surgery
Background:
- Ectopic ureters are rare congenital anomalies, often presenting diagnostic challenges.
- Mesonephric duct cysts can be associated with complex urinary tract malformations.
- Accurate anatomical visualization is crucial for surgical planning in pediatric urology.
Observation:
- A 5-year-old girl presented with a rare anomaly involving a single system ectopic ureter.
- The ureter drained into a mesonephric duct cyst, with an ipsilateral crossed fused kidney.
- Helical computed tomography (CT) data was used to reconstruct three-dimensional (3-D) images of the urinary tract.
Findings:
- Three-dimensional (3-D) imaging clearly depicted the mesonephric duct cyst, the right ureter's drainage into the cyst, and the ectopic orifice.
- Inferior projection views were particularly effective in visualizing the anomaly.
- Retrograde contrast study combined with 3-D display of helical CT data provided detailed anatomical information.
Implications:
- Three-dimensional (3-D) display of helical CT data is a valuable tool for diagnosing complex ectopic ureter cases.
- This imaging technique offers promising anatomical detail for surgical planning.
- Understanding such rare anomalies aids in improving pediatric urological care.