Nierenabszesse

Renal abscesses result from a severe infection leading to liquefaction of renal tissue. They are quite frequently multiple and arise in areas of interstitial inflammation. An abscess can rupture through the renal capsule into the perinephric space, forming a perinephric abscess. When it extends beyond Gerotas fascia, it may spread throughout the retroperitoneal space limited anteriorly via the prevertebral fascia and point in the inguinal region or between the paraspinal muscle masses over lying the kidney below the 12th rib in the costovertebral, renal angle. Patients with diabetes and intravenous drug abusers are at risk of developing renal abscess. Ultrasonography, CT and MRI are helpful in distinguishing abscess from other inflammatory renal disease and in deciding on the management. Intensive antibiotic therapy alone may be effective for treatment of renal or perinephric abscesses smaller than 5 cm.