[Ureteral Cancer Developing in Retrocaval Ureter : A Case Report]
Yoshiaki Matsumura1, Yusuke Iemura1, Shinji Fukui1
1The Department of Urology, Nara Prefecture General Hospital.
Hinyokika Kiyo. Acta Urologica Japonica
|February 23, 2018
Summary
This study reports a rare case of ureteral cancer in a retrocaval ureter, successfully treated with retroperitoneoscopic nephroureterectomy. Laparoscopic surgery facilitated complete tumor removal with minimal incision.
Area of Science:
- Urology
- Surgical Oncology
Background:
- Retrocaval ureter is a rare congenital anomaly.
- Ureteral cancer is uncommon, and its occurrence in a retrocaval ureter is exceptionally rare.
Observation:
- A 69-year-old male presented with right ureteral cancer diagnosed during ureteroscopy for a ureteral calculus.
- Histological analysis revealed non-invasive papillary urothelial carcinoma, low grade (G2).
- Computed tomography (CT) confirmed the presence of a retrocaval ureter, with a double J stent aiding diagnosis.
Findings:
- The patient underwent a successful retroperitoneoscopic complete nephroureterectomy.
- The laparoscopic approach allowed for clear separation of the ureter from the inferior vena cava.
- En bloc extirpation of the kidney and ureter was achieved through a minimal lower abdominal incision.
Implications:
- Laparoscopic surgery, specifically retroperitoneoscopy, is a viable and effective treatment for ureteral cancer in the retrocaval ureter.
- Careful preoperative planning is crucial for managing this rare condition due to the complex anatomy.
- This case highlights the importance of considering anatomical variations in surgical strategy for retroperitoneal tumors.
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