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Primary prostatic Wilms' tumor.

O Casiraghi1, F Martinez-Madrigal, F K Mostofi

  • 1Département d'Histopathologie A, Institut Gustave-Roussy, Villejuif, France.

The American Journal of Surgical Pathology
|September 1, 1991
PubMed
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The first reported case of primary Wilms' tumor in the prostate occurred in a 32-year-old man. This non-teratomatous tumor likely arises from persistent nephrogenic rests within the prostate.

Area of Science:

  • Urologic Oncology
  • Developmental Biology
  • Pathology

Background:

  • Wilms' tumor (nephroblastoma) is a rare kidney cancer typically affecting children.
  • Primary Wilms' tumor of the prostate is exceptionally rare, with no prior documented cases.

Observation:

  • A case of primary prostatic Wilms' tumor in a 32-year-old male is presented.
  • Histological analysis revealed a triphasic tumor with blastematous, stromal, and epithelial (tubular, glomeruloid) components.
  • No teratomatous elements were identified in the tumor.

Findings:

  • The prostatic tumor exhibited characteristics consistent with Wilms' tumor, including a triphasic histology.
  • The absence of teratomatous components distinguishes it from other rare prostatic neoplasms.

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Implications:

  • This case suggests that persistent nephrogenic blastematous rests associated with the Wolffian duct system may be the origin of primary prostatic Wilms' tumor.
  • Highlights the importance of considering rare differentials in adult prostatic malignancies.