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Published on: October 31, 2025
[Retroperitoneal liposarcoma surgically repaired with Boari flap].
Teruo Inamoto1, Ryosuke Kimura, Haruhito Azuma
1Department of Urology, Saiseikai Sizuoka Hospital.
Hinyokika Kiyo. Acta Urologica Japonica
|February 21, 2009
Summary
Retroperitoneal liposarcoma, a rare tumor, was surgically removed from a 61-year-old male. Reconstruction of the ureter was successfully achieved using a Boari flap, nephropexy, and psoas hitch.
Area of Science:
- Urology
- Surgical Oncology
- Abdominal Imaging
Background:
- Retroperitoneal liposarcoma is a rare malignant tumor originating from fat cells in the retroperitoneum.
- Early diagnosis and surgical management are crucial for favorable outcomes.
- This case highlights the challenges associated with large retroperitoneal masses.
Observation:
- A 61-year-old male presented with a large intraabdominal mass.
- Computed tomography (CT) confirmed a huge retroperitoneal mass involving the right kidney and bladder.
- The tumor encased the right ureter, necessitating its partial resection.
Findings:
- Surgical resection of the retroperitoneal liposarcoma was performed.
- A complex ureteral reconstruction was successfully accomplished using a Boari flap.
- Nephropexy and psoas hitch techniques were employed to aid in the reconstruction and fixation.
Implications:
- This case demonstrates the feasibility of complex reconstructive techniques for ureteral defects after retroperitoneal tumor resection.
- The Boari flap, nephropexy, and psoas hitch offer a viable solution for challenging ureteral reconstruction.
- Effective surgical management of retroperitoneal liposarcoma requires a multidisciplinary approach and tailored reconstructive strategies.
