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Large pelvic schwannoma causing bilateral hydronephrosis.
Cengiz Girgin1, Ugur Ozkan, Akif Sezer
1Department of I. Urology, Atatürk Education Hospital, Izmir, Turkey. girgincengiz@hotmail.com
Summary
A rare, large benign retroperitoneal schwannoma caused bilateral ureterohydronephrosis but preserved kidney function. Surgical removal was successful, with no recurrence at six months.
Area of Science:
- Oncology
- Urology
- Pathology
Background:
- Schwannomas are tumors arising from Schwann cells of the neural sheath.
- Retroperitoneal tumors are rare, and large schwannomas in this location are particularly unusual.
- Bilateral ureterohydronephrosis can result from extrinsic compression of the ureters.
Observation:
- A case of a large (21 x 18 x 11 cm) benign retroperitoneal schwannoma is presented.
- The tumor extended from the prostate to the umbilical level, causing bilateral ureterohydronephrosis.
- Despite significant ureteral obstruction, renal function tests remained within normal limits.
Findings:
- Complete surgical excision was achieved via anterior laparotomy.
- Histological and immunohistochemical analyses confirmed the diagnosis of schwannoma.
- Post-operative follow-up at six months showed no evidence of tumor recurrence.
Implications:
- This case highlights the potential for large retroperitoneal schwannomas to cause significant urinary tract obstruction without immediate renal compromise.
- Complete surgical excision is an effective treatment for benign retroperitoneal schwannomas.
- Early diagnosis and surgical management are crucial for favorable outcomes in patients with retroperitoneal tumors.