[Treatment by external drainage of perirenal abscess in AIDS].

Fever of undetermined origin in a young white heroin addict with a positive HIV (human immunodeficiency virus), serology was secondary to a staphylococcal perinephric abscess. Ultrasound examination and tomodensitometry allowed the diagnostic. Percutaneous drainage led to complete recovery. Interventional radiology associated with antibiotherapy appears to be an alternative to surgery in the treatment of perinephric abscesses.