RT Book, Section A1 Hay, Jr, William W. A1 Levin, Myron J. A1 Deterding, Robin R. A1 Abzug, Mark J. SR Print(0) ID 1145459570 T1 Wilms Tumor (Nephroblastoma) T2 Quick Medical Diagnosis & Treatment Pediatrics YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781264257614 LK accesspediatrics.mhmedical.com/content.aspx?aid=1145459570 RD 2024/04/23 AB Approximately 460 new cases occur each year in the United States, representing 5–6% of cancers in children younger than 15 yearsSecond most common abdominal tumor in children after neuroblastomaOccurrence is sporadicMedian age at diagnosis is related both to gender and lateralityDiagnosed earlier in males than femalesBilateral tumors present at a younger age than unilateral tumorsOccurs most commonly between ages 2 and 5 years; it is unusual after age 6 years