Bilateral Wilms' tumor and secondary malignancies

Area of Science:

• Pediatric Oncology
• Nephroblastoma Research
• Cancer Survivorship

Background:

• Bilateral Wilms tumor (nephroblastoma) presents a unique challenge in pediatric oncology.
• Multimodal therapy is the standard approach for managing this condition.

Purpose of the Study:

• To report the long-term outcomes of patients with bilateral Wilms tumor treated with multimodal therapy.
• To investigate the causes of mortality in this patient cohort.

Main Methods:

• Retrospective analysis of six patients with bilateral Wilms tumor.
• Review of treatment protocols and follow-up data, including survival rates and causes of death.

Main Results:

• Initial 2-year survival rate was 83% with multimodal therapy.
• Long-term follow-up showed a decreased survival rate of 33%.
• Late mortality was primarily attributed to secondary malignant tumors in the irradiated field (2 patients) and chemotherapy complications (1 patient).

Conclusions:

• While multimodal therapy offers initial survival benefits for bilateral Wilms tumor, long-term surveillance is crucial.
• Lifelong monitoring is essential to detect secondary malignancies and other late effects of treatment in survivors of bilateral nephroblastoma.