Fat containing bilateral synchronous Wilms’ tumor: Imaging findings

The Wilms’ tumor (WT), an embryonic neoplasm deemed to arise from metanephric blastema, is the most common renal tumor of childhood. Bilaterality is reported to occur in approximately 5% of such cases. Although the sources in the radiologic literature state that when CT shows definite fat within a renal mass, angiomyolipoma can be established as the diagnosis and fat tissue can be seen in 7% of the WTs, as well. In this case report, we denote radiological features of a synchronous bilateral WT containing fatty tissue.