Week 319: Case 6

1. Presented by George Netto, M.D. and prepared by Amy Duffield, M.D., Ph.D.

4 year old boy presented with an enlarging abdominal mass. A 14 cm right renal mass was found on imaging studies. A radical nephrectomy was performed. On immunohistochemical analysis, the tumor was negative for WT1 and focally positive for NSE.

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