Miscellaneous tumors

Wilms tumor (nephroblastoma)

Last author update: 1 December 2014
Last staff update: 24 December 2022

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PubMed Search: Nephroblastoma [title] ovary

Nalini Gupta, M.D.
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Cite this page: Gupta N. Wilms tumor (nephroblastoma). PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/ovarytumornephroblastoma.html. Accessed June 5th, 2023.
Definition / general
  • See also topics in Kidney tumor chapter: Childhood Wilms, Adult Wilms
  • Extrarenal Wilms tumor are very rare, mostly seen in children
  • Occur mostly in reteroperitoneum and very rarely in ovary
  • Hypothesis for origin of these tumors is still debated
Clinical features
  • Palpable mass
  • The diagnostic criteria necessary to establish the diagnosis include absence of primary kidney tumor and supernumerary kidney (radiologically and surgically)
Radiology description
Prognostic factors
Gross description
  • Solid large mass with cystic cavities
Gross images

Images hosted on other servers:

Wilms tumor involving both kidneys

Microscopic (histologic) description
  • Sheets of undifferentiated blastemal component with or without epithelial, mesenchymal differentiation and anaplastic features
Microscopic (histologic) images

Images hosted on other servers:

Adult tumor (kidney)

Various images (kidney)

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