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Brain abscess due to Bacillus macerans following a penetrating periorbital injury

F Bert1, O Ouahes, N Lambert-Zechovsky

  • 1Department of Microbiology, Hôpital Beaujon, Clichy, France.

Insights

A rare brain abscess caused by Bacillus macerans and Clostridium species developed 2.5 months after a penetrating eye injury. This case highlights the importance of considering foreign body retention in delayed brain abscess presentations.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Ophthalmology

Background:

  • Penetrating orbital injuries can lead to delayed intracranial complications.
  • Brain abscesses are serious infections requiring prompt diagnosis and treatment.
  • Bacillus species are uncommon causes of central nervous system infections.

Observation:

  • A patient presented with neurological symptoms 2.5 months after a penetrating periorbital injury from a wooden branch.
  • Initial assessment did not suspect intracranial penetration or foreign body retention.
  • The patient developed a brain abscess involving Bacillus macerans and Clostridium species.

Findings:

  • The brain abscess was confirmed to be polymicrobial, with Bacillus macerans and Clostridium species identified as causative agents.
  • Delayed presentation of neurological symptoms is a key feature in this case.
  • Review of previously reported Bacillus-associated brain abscesses provides context for this rare etiology.

Implications:

  • This case underscores the need for vigilant monitoring and consideration of retained foreign bodies in patients with orbital trauma, even with delayed onset of symptoms.
  • Early recognition and appropriate management of brain abscesses are crucial for favorable outcomes.
  • Further research into the pathogenesis and management of rare bacterial brain abscesses is warranted.

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