Infection and drug resistance · 2025
Purulent Meningitis Due to Porphyromonas endodontalis, Bacteroides heparinolyticus, Prevotella pleuritidis and Streptococcus constellatus from Oral and Maxillofacial Space Infection: A Case Report.
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Yang Linyi, Zeng Jingyan, Zhang Yunwei, Li Linlin
Аннотация
BACKGROUND: Purulent meningitis caused by polymicrobial oral anaerobes represents a rare but life-threatening clinical challenge, with Porphyromonas endodontalis, Bacteroides heparinolyticus, Prevotella pleuritidis, and Streptococcus constellatus being pfastidious organisms. Traditional diagnostic methods often fail to identify these fastidious organisms, leading to delayed or inappropriate therapy.
CASE PRESENTATION: We report a rare case of purulent meningitis resulting from a polymicrobial infection involving Porphyromonas endodontalis, Bacteroides heparinolyticus, Prevotella pleuritidis, and Streptococcus constellatus in a 76-year-old male patient who presented with a 40-day history of left facial pain. This case represents the first documented instance of these four oral anaerobes concurrently causing an infection of the central nervous system.
CONCLUSION: To the best of our knowledge, this case represents the first documented evidence of polymicrobial purulent meningitis caused by oral anaerobes, specifically Porphyromonas endodontalis, Bacteroides heparinolyticus, Prevotella pleuritidis, and Streptococcus constellatus. Our findings not only provide direct evidence for the oral-central nervous system (CNS) infection pathway but also validate that the valuable approach based on metagenomic next-generation sequencing (mNGS) offers significant clinical insights for diagnostic and therapeutic strategies.
CASE PRESENTATION: We report a rare case of purulent meningitis resulting from a polymicrobial infection involving Porphyromonas endodontalis, Bacteroides heparinolyticus, Prevotella pleuritidis, and Streptococcus constellatus in a 76-year-old male patient who presented with a 40-day history of left facial pain. This case represents the first documented instance of these four oral anaerobes concurrently causing an infection of the central nervous system.
CONCLUSION: To the best of our knowledge, this case represents the first documented evidence of polymicrobial purulent meningitis caused by oral anaerobes, specifically Porphyromonas endodontalis, Bacteroides heparinolyticus, Prevotella pleuritidis, and Streptococcus constellatus. Our findings not only provide direct evidence for the oral-central nervous system (CNS) infection pathway but also validate that the valuable approach based on metagenomic next-generation sequencing (mNGS) offers significant clinical insights for diagnostic and therapeutic strategies.