Abstract
The sonographic manifestations of 20 childhood abdominal biopsy-proved lymphomas were presented. Thirteen cases showed positive renal sonographic findings such as renomegaly, hyperechoic renal cortex, focal hypoechoic mass and hydronephrosis. The incidence of renal involvement was high in lymphoma detected by ultrasound. There was no difference between sonographic findings of Hodgkin and non-Hodgkin lymphoma. The ultrasound findings may be confirmed with gallium scanning. Ultrasound was more accurate in detecting renal lesions in lymphoma than computed tomography.