[Streptococcal abscesses of the liver: diagnosis and therapy using ultrasound controlled puncture].

Three male patients without accompanying diseases, 27, 47, and 52 years of age, were admitted with fever of unknown origin. Focal liver disease was seen on ultrasound and the diagnosis of an abscess was confirmed by sonographically-guided fine-needle puncture. Microaerophilic streptococci were found in two cases, streptococcus viridans once. Two patients had cryptogenic abscesses; one had previously undergone surgery for a rectal abscess. All three patients were cured of their condition by appropriate antibiotic coverage and evacuation of the abscess by needle aspiration.