Developmental cystic renal neoplasms in children. Diagnostic imaging characteristics

We report diagnostic imaging and histopathologic findings in four children with different cystic renal neoplasms. The features discerned with computed tomography (CT), as well as ultrasound, correlated well with gross histologic findings, although a definitive diagnosis could not be made on the basis of CT and ultrasound alone. Because the most malignant variants of these lesions cannot be excluded preoperatively, we advocate complete diagnostic imaging studies, followed by nephrectomy, for all cases of cystic renal neoplasms in infants and children.