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Radiology, Vol 178, 383-385, Copyright © 1991 by Radiological Society of North America
ARTICLES |
K McHugh, DA Stringer, D Hebert and CA Babiak
Department of Radiology, Hospital for Sick Children, Toronto, Ont, Canada.
To assess the sonographic frequency of simple renal cysts in children, the authors retrospectively reviewed the results of abdominal sonographic studies of 16,102 children performed over a 5-year period between January 1, 1985, and December 31, 1989. Patients with abnormal renal function, dysplastic kidneys, or a family history of polycystic kidney disease were excluded from the study. The authors' review of the sonograms revealed 37 simple cysts in 35 patients (0.22%); the cysts were evenly distributed by age and sex and measured from 0.3 to 7.0 cm in maximum diameter. Sixteen cysts (43%) were in the upper pole of the right kidney. Follow-up sonographic studies of 23 cysts in 22 patients for up to 5 years showed no change in size in 17 cysts (74%). The largest cyst was drained percutaneously; all other cysts were managed conservatively. No patient showed deterioration of renal function. Therefore, the authors concluded that in a pediatric patient demonstrating normal renal function, no further intervention is necessary when a simple renal cyst is identified at sonography.
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