• Childhood Kidney Diseases
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• v.5 no.1
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• pp.69-72
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• 2001

Infrequent voiding is defiled as two or less micturitions in a day without organic causes. It can 1ead to bladder capacity enlargement and increase in the volume of residual urine and as a consequence it may produce recurrent urinary tract infections(UTI) and or renal damages. We report a case of acute pyelonephritis due to infrequent voiding in a 13 year old girl. The imaging studies revealed floating debris in the bladder on VCUG and dilated ureter on ultrasonography, and parenchymal defects on 99mTc DMSA scan. (J. Korean Soc Pediatr Nephrol 5 : 69- 72, 2001)