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Extrarenal Wilms tumour.
W Apoznański1, K Sawicz-Birkowska, W Pietras
1Department of Paediatric Surgery and Urology, University of Medicine, Wrocław, Poland.
Summary
This case study highlights an extremely rare extrarenal Wilms tumour (nephroblastoma) developing 14 years after treatment for bilateral kidney tumors. This suggests metanephros remnants outside the kidney can lead to late-stage cancer development.
Area of Science:
- Pediatric Oncology
- Nephrology
- Tumor Biology
Background:
- Nephroblastoma (Wilms tumour) is a common pediatric kidney cancer.
- Bilateral Wilms tumours affect both kidneys in 5% of cases.
- Extrarenal Wilms tumours are exceptionally rare.
Observation:
- A case report of a male patient diagnosed with a retroperitoneal nephroblastoma.
- The diagnosis was made 14 years after the patient completed intensive therapy for bilateral Wilms tumour.
Findings:
- The development of an extrarenal tumour 14 years post-treatment for bilateral nephroblastoma.
- This late-onset extrarenal tumour is attributed to the survival of metanephros tissue outside the kidney.
Implications:
- Highlights the potential for metanephric remnants to develop into nephroblastoma long after initial cancer treatment.
- Underscores the importance of long-term surveillance in survivors of bilateral Wilms tumour, even for extrarenal recurrences.
- Contributes to understanding the embryological origins and potential sites for Wilms tumour development.