One hundred and ten children (54 boys and 46 girls) with the diagnosis of nephrotic syndrome (NS) were examined by sonography at the Clinic of Imaging Methods in the years 1999–2002. Diffuse lesion of kidney parenchymawasdemonstrated in 52 children (47%), enlarged kidneys with a picture of diffuse lesion in 30 children (27%), enlarged kidneys without other damage in five children (4.5%), and free intraabdominal liquid in a form of ascites was demonstrated in 10 children (9%). The failure of solitary kidney developed in one patient, three patients were transplanted kidney in the end stage of the disease. Sonomorphological findings in the other patients were normal. In all these patients ultrasonography was the examination of first choice as a part of the complex entry examination for suspected NS. Sonographic examinations in specific time intervals revealed gradual regression of the symptoms of diffusion lesion of parenchyma in 75 patients.

        Key words: ultrasonography – diffuse lesions of kidney parenchyma – nephrotic syndrome