Primary extrarenal Wilms' tumour: identification of a putative precursor lesion

Histopathology. 1992 Jul;21(1):76-8. doi: 10.1111/j.1365-2559.1992.tb00348.x.


We report a case of primary extrarenal Wilms' tumour which, on histological examination, revealed a zone of hyalinized blastema adjacent to, and within the tumour capsule. The tumour showed a predominant stromal component. The presence of the hyalinized blastema adjacent to the tumour raises the possibility that some cases of extrarenal Wilms' tumour may have a precursor lesion.

Publication types

  • Case Reports

MeSH terms

  • Abdominal Neoplasms / pathology*
  • Child, Preschool
  • Humans
  • Male
  • Precancerous Conditions / pathology*
  • Wilms Tumor / pathology*