ABSTRACT
Acute multifocal bacterial nephritis is a severe form of acute renal infection in which a heavy leukocytic infiltrate occurs throughout the kidney with intrarenal abscess formation. It is also early phase of renal corticomedullary abscess. It is imperative that a prompt acute diagnosis be made in most of these conditions, for these patients may be or may rapidly become septic and suddenly deteriorate if not treated appropriately and in a timely manner. Clinically, acute multifocal bacterial nephritis present as acute pyelonephritis and could be diagnosed by radiologic grounds including abdominal computerized tomography(CT) which demonstrates poorly defined wedge-shaped area of decreased contrast enhancement identical to those found in acute focal bacterial nephritis. This case was a women with high fever, pyuria and severe leukocytosis. It was diagnosed by abdominal computerized tomography which show multiple wedge-shaped area of decreased attenuation and by computerized tomography guide aspiration biopsy which demonstrates E. coli. We report one case of acute multifocal bacterial nephritis with the reviews of literatures which showed involvement of both kidneys