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Pulmonary Abscess Caused by Neisseria meningitidis: A Case Report
Joana Diogo1, João Felgueiras1, Nuno Mascarenhas1
1Pulmonology Department, Unidade Local de Saúde do Arco Ribeirinho, Barreiro, PRT.
Cureus
|February 16, 2026
Summary
Neisseria meningitidis rarely causes lung abscesses, often mimicking cancer in smokers and alcoholics. Prompt identification via microbiological testing is crucial for effective treatment and public health.
Area of Science:
- Infectious Diseases
- Pulmonology
- Microbiology
Background:
- Neisseria meningitidis (meningococcus) is a bacterium typically causing meningitis and septicemia.
- Pulmonary abscesses are rare manifestations of N. meningitidis, particularly in adults with risk factors like smoking, alcoholism, or lung disease.
- Atypical presentations necessitate broad differential diagnoses, including malignancy and other bacterial infections.
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