Radiology Notes

My notes during radiology residency, fellowship, and beyond…

Wilm’s Tumor

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  • Age: 80% <6yo; most common abdominal neoplasm 1-8 yo.
  • Appearance: solid mass in kidney (claw sign), pushing away vessels, not crossing mid-line
  • IVC and renal vein thrombosis
  • Mets to lung, liver, brain, bone
  • Staging
    • I = confined to kidney
    • II = local extension to perinephric space
    • III = lymph nodes
    • IV = distant mets
    • V = bilateral renal
  • DDx: neuroblastoma (crosses mid-line, encases vessels, calcify), multilocular cystic nephroma, sarcoma, RCC, nephroblastomatosis, mesoblastic nephroma, AML, renal medullary carcinoma


Written by lmwong

October 28, 2011 at 1:17 pm

Posted in abdomen, GU, pediatrics, renal

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