Unusual presentation of meningococcal meningitis in the elderly and utility of CSF PCR testing

Elizabeth Ranson1, Hannah Ship1, Omai Garner2

  • 1Division of Infectious Diseases, Department of Medicine, University of California, Los Angeles, USA.

Access Microbiology
|November 16, 2020
PubMed

Insights

A previously healthy 74-year-old man developed severe symptoms including weakness, myalgias, and a petechial rash. He was diagnosed with meningococcal meningitis via PCR testing, despite lacking typical signs like fever or headache.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Critical Care Medicine

Background:

  • Meningococcal meningitis typically presents with fever, headache, and nuchal rigidity.
  • Atypical presentations can delay diagnosis and treatment, potentially leading to severe outcomes.

Observation:

  • A 74-year-old man with no prior health issues presented with diffuse weakness, severe myalgias, petechial palmar rash, and hypotension.
  • The patient notably lacked fever, altered mental status, nuchal rigidity, or headache, confounding initial diagnostic considerations.

Findings:

  • Polymerase chain reaction (PCR) testing confirmed the presence of Neisseria meningitidis, establishing the diagnosis of meningococcal meningitis.
  • The clinical presentation was highly unusual, deviating significantly from the classic signs and symptoms of meningococcal meningitis.

Implications:

  • This case highlights the importance of considering meningococcal meningitis even in the absence of classic symptoms, particularly in older adults.
  • Early and accurate diagnosis through appropriate testing is crucial for timely intervention and improved patient outcomes in atypical meningitis cases.
  • Further research into variations in meningococcal meningitis presentation may improve diagnostic strategies and patient management protocols.