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Morganella morganii, subspecies morganii, biogroup A: An unusual causative pathogen of brain abscess

Asha B Patil1, Shobha D Nadagir, Sa Lakshminarayana

  • 1Department of Microbiology, Karnataka Institute of Medical Sciences, Hubli, Karnataka, India.

Journal of Neurosciences in Rural Practice
|November 29, 2012
PubMed

Insights

Morganella morganii, a rare cause of brain abscess, can lead to severe central nervous system (CNS) infections. Early suspicion is crucial, especially in otogenic infections, to ensure timely diagnosis and treatment.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Neurology

Background:

  • Morganella morganii is a Gram-negative aerobe, typically an intestinal commensal.
  • It is frequently associated with urinary tract and pyogenic infections.
  • Central nervous system (CNS) infections, particularly brain abscesses, are rare manifestations of M. morganii.

Observation:

  • This paper details an unusual case of a brain abscess caused by Morganella morganii, subspecies morganii, biogroup A.
  • The case highlights the importance of considering M. morganii in brain abscesses secondary to otogenic infections.
  • A high index of suspicion is necessary for diagnosing this rare pathogen.

Findings:

  • Morganella morganii is an uncommon but significant pathogen in brain abscess etiology.
  • The subspecies and biogroup A are identified as causative agents in this specific case.
  • Review of literature indicates limited reports of M. morganii-induced brain abscesses.

Implications:

  • Clinicians should consider Morganella morganii in the differential diagnosis of brain abscesses, especially those with otogenic origins.
  • Prompt identification and management of M. morganii infections can improve patient outcomes.
  • Further research into the pathogenesis and treatment of M. morganii CNS infections is warranted.
Keywords:
Brain abscessChronic Suppurative Otitis MediaMorganella morganii

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