A Rare Case of Brain Abscess Caused by Aggregatibacter aphrophilus and Actinomyces georgiae in an Immunocompetent Child
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A brain abscess is a potentially life-threatening infection of the brain that can be challenging to diagnose, especially in children. In this report, we describe a case of a central nervous system infection caused by rare pathogens in an immunocompetent child. A 10-year-old female presented with a severe headache lasting 10 days, along with flashing lights, nausea, and vomiting. The patient was diagnosed with secundum atrial septal defect 7 years ago and underwent dental work for cavities one month prior to admission. Brain magnetic resonance imaging (MRI) showed a 4.2 cm sized brain abscess in the right parietal lobe, causing left inferior quadrantanopia. A craniotomy and abscess aspiration surgery were performed, and cultures from the aspirated pus and tissue revealed Aggregatibacter aphrophilus. Additionally, Actinomyces georgiae was identified through 16S rRNA sequencing. After 8 weeks of antimicrobial therapy with ampicillin-sulbactam, the patient was discharged without any complications. A follow-up brain MRI showed complete resolution of the abscess and edema.
Abstract
A brain abscess is a potentially life-threatening infection of the brain that can be challenging to diagnose, especially in children. In this report, we describe a case of a central nervous system infection caused by rare pathogens in an immunocompetent child. A 10-year-old female presented with a severe headache lasting 10 days, along with flashing lights, nausea, and vomiting. The patient was diagnosed with secundum atrial septal defect 7 years ago and underwent dental work for cavities one month prior to admission. Brain magnetic resonance imaging (MRI) showed a 4.2 cm sized brain abscess in the right parietal lobe, causing left inferior quadrantanopia. A craniotomy and abscess aspiration surgery were performed, and cultures from the aspirated pus and tissue revealed Aggregatibacter aphrophilus. Additionally, Actinomyces georgiae was identified through 16S rRNA sequencing. After 8 weeks of antimicrobial therapy with ampicillin-sulbactam, the patient was discharged without any complications. A follow-up brain MRI showed complete resolution of the abscess and edema.
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