Purulent Pericarditis in End-Stage Renal Disease: A Rare Case of Citrobacter freundii Infection.

BACKGROUND: Purulent pericarditis is a rare but life-threatening condition, particularly challenging when it occurs in immunocompromised individuals. CASE REPORT: We present the case of a 68-year-old man with end-stage renal disease who developed purulent pericarditis secondary to Citrobacter freundii infection. Despite initial challenges in diagnosis and management, the patient showed a favorable response to antibiotic therapy. CONCLUSIONS: This case highlights the importance of prompt recognition and treatment of purulent pericarditis, especially in patients with underlying immunosuppression and comorbidities.