Primary extrarenal Wilms' tumor in children

Bruce H. Broecker, Anthony A. Caldamone, Nancy B. McWilliams, Harold Maurer, Arnold Salzberg

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


We report three additional cases of primary extrarenal Wilm's tumor and review those cases previously documented. Analysis of the location, histopathology, treatment, and survival of these cases supports the following conclusions: Wilms' tumor may occur in an extrarenal location without primary renal involvement and must be included in the differential diagnosis of abdominal, pelvic, and inguinal masses; an extrarenal location supports a more frequent occurrence of ectopic metanephric blastema than was previously recongized or origin of Wilms' tumor from a more primitive mesodermal tissue; and the natural history and prognosis of extrarenal and renal Wilms' tumors appears similar.

Original languageEnglish (US)
Pages (from-to)1283-1288
Number of pages6
JournalJournal of pediatric surgery
Issue number12
StatePublished - Dec 1989
Externally publishedYes


  • Wilms' tumor
  • extrarenal Wilms' tumor

ASJC Scopus subject areas

  • Surgery
  • Pediatrics, Perinatology, and Child Health


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