Neuroblastoma differs from Wilm's tumor radiologically by all except

The following are the differentiating feature b/w Neuroblastoma & Wilm's tumor. Calcification There are foci of calcifications visible in neuroblastoma (about 85%) which are generally less common and less prominent in Wilm's tumor (less than 15%). Intraspinal extension The intraspinal extension is seen in neuroblastoma, not in Wilm's tumor. Aorta & WC invasion Wilm's tumor invades Aorta and IVC. Whereas Neuroblastoma does not invade these structures. Location Wilm's tumor and neuroblastom can be differentiated on location too. C.T. findings will confirm the intrarenal location of Wilm's. Whereas Neuroblastoma will be seen above the kidney pushing it downwards & outwards. Crossing midline Wilm's tumor or are typically confined to one side of the abdomen, whereas neuroblastomas usually cross the midline.