[Parenchymatous abscess in Streptococcus anginosus (Streptococcus milleri) septicemia. Value of their systematic search, apropos of 4 cases].

Streptococcus anginosus, the term suggested to cover a set of streptococci previously known under various names (milleri, MG, anginosus, intermedius, constellatus), is characterized by a propensity to create parenchymatous abscesses, essentially cerebral or hepatic, particularly within the terms of septicemia. These abscesses are sometimes difficult to detect due to a difficult or non-existent symptomatology. The authors report on four cases illustrating the necessity to search for them systematically by cerebral CT scan and abdominal echography or CT scan in all cases of septicemia caused by Streptococcus anginosus.