Acute pyelonephritis: analysis of 52 cases.

Acute pyelonephritis (APN) is a frequent disease, but diagnostic approach, evolution into abscesses, and indication to hospitalization are still open problems. We have made a retrospective analysis of APN cases observed in our hospital. We identified 58 patients (pt) and selected 52 of these who presented fever and loin pain at the onset (31 were hospitalized in Nephrology and 21 in other units).