A Case Report of Brain abscess due to Prevotella oris and Review of the Literature

Abstract Background Brain abscess caused by Prevotella oris is rarely reported. Here we described a case of brain infection from Prevotella oris detected by the metagenomic next-generation sequencing (mNGS). Case presentation A 63-year-old man with no medical history reported headache in the right frontotemporal region, fever, and intermittent diplopia. Magnetic resonance imaging (MRI) revealed abnormal signals and enhancement changes in sellar region, superior sellar region. mNGS testing showed that the cerebrospinal fluid collected from spinal was detected positively for Prevotella oris. After receiving the combined treatment of antibiotic therapy, the patient recovered well. Conclusion We review the relevant literature and try to summarize the characteristics and prognosis of bacterial infection, to provide ideas for clinicians to diagnose and treat disease.