Clinical characteristics of Bacteroides pyogenes infections: A combined analysis of 34 cases from a Japanese tertiary hospital and 29 cases from the literature.

Diseases such as cholangitis and sinusitis may be caused by Bacteroides pyogenes, frequently isolated from patients with underlying malignancies. Head and neck infections involving B. pyogenes have high recurrence rates and may require 1-3 months of antibiotic therapy. Careful monitoring and appropriate treatment are crucial for managing these infections.