Pyelonephritis in infancy and childhood: its bacteriology and pathology

Abstract

Until about twenty-five years ago it was generally accepted that pyelitis was a disease per se and that infection of the renal tissue proper was as a rule secondary to infection of the pelvis. Recently, however, it has been shown that the lesion is seldom localized in the pelvis and a considerable amount of evidence has accumulated which favours the supposition that the primary focus of infection is in the kidney itself (Thiemich', Borrmann- Bremen2, Kowitz', Chown4, Wilson and Schloss5).