ABSTRACT
In severe cases there may be a solid inflammatory mass without drainable pus, termed acute focal bacterial pyelonephritis, which can progress to intrarenal and perirenal abscess formation which is best imaged by CT.
In severe cases there may be a solid inflammatory mass without drainable pus, termed acute focal bacterial pyelonephritis, which can progress to intrarenal and perirenal abscess formation which is best imaged by CT.