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Updated: Nov 2, 2025
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A Syngeneic Mouse Model of Metastatic Renal Cell Carcinoma for Quantitative and Longitudinal Assessment of Preclinical Therapies
Published on: April 12, 2017
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Primary Renal Leiomyosarcoma
1Department of Urology, Tianjin Baodi Hospital, Tianjin, China.
Summary
Primary renal leiomyosarcoma is rare and often diagnosed late. Complete surgical removal is crucial, with potential benefits from additional therapies for better patient outcomes.
Area of Science:
- Oncology
- Urology
Background:
- Primary renal leiomyosarcoma is an exceptionally rare renal neoplasm.
- Early diagnosis and effective treatment strategies remain challenging.
Observation:
- A 49-year-old woman presented with an incidentally discovered right renal mass.
- Imaging revealed a 6x7x9 cm heterogeneous renal mass, initially suspected as renal carcinoma.
- A right radical nephrectomy was performed, with pathological diagnosis confirming primary renal leiomyosarcoma.
Findings:
- The patient experienced local recurrence and liver metastases 40 months post-surgery.
- The overall survival period was limited to 44 months due to tumor metastasis and cachexia.
Implications:
- Non-specific clinical signs necessitate advanced imaging and pathology for accurate diagnosis.
- Radical nephrectomy is the recommended primary treatment.
- Consideration of neoadjuvant or postoperative therapies may improve outcomes for renal leiomyosarcoma.
