Percutaneous Approach of Renal and Perirenal Suppurations

Abstract Renal abscess is a circumscribed suppurated collection in the renal parenchyma. Although ascending urinary tract infections with Gram-negative germs seem to be responsible for most cases of renal abscesses in adults, another modality of septic seeding can be the hematogenous one. Modern diagnostic methods and interventional radiological techniques have modified the therapeutic management of renal abscesses in the last decades. For selected cases of renal abscesses, percutaneous treatment combined with antibiotic therapy represents the standard therapy to date, with a decrease in morbidity, mortality, hospitalization period, and costs. Percutaneous drainage represents an efficient and safe alternative to open surgical drainage. When it is not curative, percutaneous treatment may allow the stabilization of the patient until the curative intervention.