Acute lobar nephronia is a focal form of acute bacterial nephritis, affecting one or more of the renal lobules. Nephronia is being diagnosed more frequently in accordance with the advancing imaging techniques of urinary tract. We report a case of acute nephronia in a 4 month old boy who presented persisting urinary tract infection after intial antibiotic treatment. Ultrasonography and computerized tomography showed round wedge-shaped, non-enhancing mass in right kidney. Gallium scan also revealed the lesion in the right kidney. This lesion resolved completely on one month follow up examinations.
Follow-Up Studies ; Gallium ; Humans ; Infant ; Kidney ; Male* ; Nephritis* ; Ultrasonography ; Urinary Tract ; Urinary Tract Infections

Infrequent voiding is defined as two or less micturitions in a day without organic causes. It can lead 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.
Adolescent ; Female* ; Humans ; Pyelonephritis* ; Technetium Tc 99m Dimercaptosuccinic Acid ; Ultrasonography ; Ureter ; Urinary Bladder ; Urinary Tract