Ovary tumor
Other tumors not specific to ovary
Nephroblastoma (Wilms tumor)

Author: Nalini Gupta, M.D. (see Authors page)

Revised: 5 July 2016, last major update December 2014

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PubMed Search: Nephroblastoma [title] ovary
Cite this page: Nephroblastoma (Wilms tumor). PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/ovarytumornephroblastoma.html. Accessed October 24th, 2018.
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)