Standard of care for adult Wilms tumor? From adult urologist to pediatric oncologist. A retrospective review.

Nephroblastoma or Wilms tumor, a common embryonal tumor in children, can occasionally occur in adults. The survival of patients older than 18 years is reported to be significantly inferior to that of pediatric patients. Establishing a diagnosis for these rare tumors can be challenging for both clinicians and pathologists, who are not accustomed to considering Wilms tumor as a potential differential in adults. This leads to misdiagnosis and a subsequent delay in the initiation of appropriate therapy. The standard of care is not well established for Wilms tumors in adults. We provide here a comprehensive review of the international literature on the subject with the current management protocols in France. We also propose the need of strong inter-disciplinary collaboration between surgeons, pathologists, and medical and pediatric oncologists for increasing knowledge and formulating treatment strategies for these rare tumors. Homogenous guidelines for treating adults with Wilms tumors have been proposed for all patients in France.

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