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[Retroperitoneal xanthogranuloma: a case report]
T Miyaguchi1, M Matsuo, Y Yogi
1Department of Urology, Nagasaki University School of Medicine.
Insights
A retroperitoneal xanthogranuloma was surgically removed, with partial resection due to adhesion. Follow-up imaging showed the remaining tumor mass gradually decreased in size.
Area of Science:
- Urology
- Oncology
- Pathology
Background:
- A 48-year-old male presented with lumbago.
- Diagnostic imaging revealed a solid retroperitoneal tumor near the right renal hilus.
Observation:
- The patient underwent surgical tumor resection and right nephrectomy.
- Complete tumor removal was not possible due to adherence to the inferior vena cava and lumbar spine.
Findings:
- Histological examination confirmed the diagnosis of retroperitoneal xanthogranuloma.
- Post-operative imaging after one year demonstrated a spontaneous reduction in the size of the residual tumor mass.
Implications:
- This case highlights the potential for spontaneous regression in retroperitoneal xanthogranulomas.
- Further investigation may be warranted to understand the mechanisms behind tumor reduction.
Abstract:
A 48-year-old man was admitted to our hospital for lumbago. Computerized tomographic (CT) scan, aortography and venacavography indicated a solid retroperitoneal tumor at the right renal hilus. The tumor was removed and right nephrectomy was conducted. Some of the tumor remained owing to strong adhesion to the inferior vena cava and lumbar spine. Histological diagnosis of the resected tumor was retroperitoneal xanthogranuloma. One year after surgery, the CT scan revealed a gradual decrease in size of the remaining retroperitoneal mass.