Related Experiment Video
Updated: Aug 10, 2026

Humanized Mouse Model to Study Bacterial Infections Targeting the Microvasculature
Published on: April 1, 2014
[Primary meningococcal pericarditis caused by meningococcus serogroup C]
M Rayo Gutiérrez1, J Lacalzada Almeida, I Laynez Cerdeña
1Servicio de Cardiología. Hospital Universitario de Canarias. Santa Cruz de Tenerife.
Abstract:
We report the case of a 15-year-old female, with no previous medical history, who presented cardiac tamponade secondary to purulent pericarditis caused by Neisseria meningitidis serogroup C. This microorganism is the etiologic agent in 6-16% of the cases of purulent pericarditis, most in association with previous or concomitant central nervous system involvement (meningitis). Exceptionally, as in this case, the pericarditis is not accompanied by meningitis (Primary Meningococcal Pericarditis). The patient was treated with antibiotics, pericardiocentesis and steroids with excellent response. It is important to point out that meningococcal disease may present in unusual forms which may lead to diagnostic and therapeutics difficulties.
Insights
Neisseria meningitidis serogroup C can cause purulent pericarditis and cardiac tamponade, even without meningitis. Prompt treatment with antibiotics, pericardiocentesis, and steroids led to an excellent outcome in a teenage patient.
Area of Science:
- Infectious Diseases
- Cardiology
- Pediatrics
Background:
- Purulent pericarditis is a serious infection of the pericardium.
- Neisseria meningitidis is a known cause of bacterial meningitis and sepsis.
- Meningococcal pericarditis typically occurs with concurrent meningitis.
Observation:
- A 15-year-old female presented with cardiac tamponade.
- Purulent pericarditis was diagnosed, caused by Neisseria meningitidis serogroup C.
- The patient had no preceding or concurrent central nervous system involvement.
Findings:
- This case represents primary meningococcal pericarditis, an unusual presentation.
- Neisseria meningitidis serogroup C was identified as the causative agent.
- The patient responded well to antibiotics, pericardiocentesis, and steroid therapy.
Implications:
- Meningococcal disease can manifest atypically, presenting diagnostic challenges.
- Early recognition of unusual presentations is crucial for timely intervention.
- This case highlights the importance of considering Neisseria meningitidis in purulent pericarditis, even without meningitis.
Related Concept Videos
Pericarditis I: Introduction
Bacterial Meningitis
Viral Meningitis
Cryptococcal Meningitis
Bacterial Meningitis I: Introduction
Bacterial Meningitis II: Pathophysiology

