ACUTE FOCAL BACTERIAL NEPHRITIS

Abstract

Two cases of acute focal bacterial nephritis were reported. These two patients visited us complaining symptoms of acute pyelonephritis such as pyuria, fever, and flank pain. Intravenous pyelography findings revealed a renal mass. Ultrasongraphy, CT scan and renal angiography were performed on one case and CT scan in the other case, and acute focal bacterial nephritis was diagnosed in both cases. Namely, ultrasonography showed a hypoechoic poorly marginated mass, and post-contrast CT scan revealed an inhomogenous low density area. In both cases cure could be obtained by chemotherapy. It is important to understand the entity of acute focal bacterial nephritis and to have knowledge of its radiographic findings in order to diagnose it correctly and to provide proper treatment. It is emphasized that one must be alert to the possiblity of acute focal becterial nephritis if a renal mass is revealed by intraveous pyelography.