Evaluation of ultrasonogram, CT, and intravenous pyelography in diagnosis of Wilms tumor

Aim: To compare diagnostic accuracy of ultrasonogram, computer tomography (CT) and intravenous pye-lography (IVP) in evaluation of Wilms tumor. Methods: Ultrasonogram, CT and IVP were performed in 98 cases (3 months -9 years old, average 2.5 years old, with Wilm's tumor. The diagnosis from ultrasonogram, CT and IVP was compared each other and with what found during operation and pathological examination. Results: The method with highest diagnostic accuracy was ultrasonography accounting to 93. 8% (92/98) , then were CT and IVP accounting to 88% (44/50) , and 78% (70/89) , respectively. Wilms tumors, which located at upper and lower pole of kidney, were common misdiag-nosed as non-kidney tumor. Conclusion: Ultrasonogram had a high diagnostic value for pediatric patients with renal tumor which should be the first choice to be used to evaluate the WT.