Empiric antibiotic choice for a pyogenic abscess should be directed at the microbes typically responsible, which include aerobic enteric Gram-negative bacilli (Escherichia coli and Klebsiella pneumoniae, the latter particularly prevalent in Asia), Gram-positive cocci (most commonly the Streptococcus milleri group
but also including Staphylococcus aureus, Streptococcus pyogenes, and Enterococcus spp.), and anaerobes (Bacteriodes, Fusobacterium, Actinomyces, and anaerobic streptococci) [10, 11].
Dunbar, "Streptococcus intermedius, Streptococcus constellatus, and Streptococcus anginosus ('Streptococcus milleri group
') are of different clinical importance and are not equally associated with abscess," Clinical Infectious Diseases, vol.
Streptococcus intermedius, Streptococcus constellatus, and Streptococcus anginosus (the Streptococcus milleri group
): association with different body sites and clinical infections.
Beighton, "Phenotypic differentiation of Streptococcus intermedius, Streptococcus constellatus, and Streptococcus anginosus strains within the 'Streptococcus milleri group," Journal of Clinical Microbiology, vol.
Musher, "Antibiotic susceptibilities of genetically characterized Streptococcus milleri group strains," Antimicrobial Agents and Chemotherapy, vol.
Bonomo, "Streptococcus anginosus (Streptococcus milleri group
) Pyomyositis in a 50-year-old man with acquired immunodeficiency syndrome: case report and review of literature," Infection, vol.
Abscess forming ability of Streptococcus milleri group: synergistic effect with Fusobacterium nucleatum.
Head and neck infections caused by Streptococcus milleri group: an analysis of 17 cases.
Surface-associated properties of Streptococcus milleri group strains and their potential relation to pathogenesis.
Streptococcus intermedius, Streptococcus constellatus, and Streptococcus anginosus ("Streptococcus milleri group") are of different clinical importance and are not equally associated with abscess.
Clinical and bacteriological significance of the Streptococcus milleri group
in deep neck abscesses [article in Japanese].
Herein, we present a case of a recurrent, sclerosing orbital inflammatory pseudotumor due to limited Wegener granulomatosis (WG) that was complicated by opportunistic infection with the commensal bacteria Streptococcus anginosis, part of the Streptococcus milleri group