Purulent pericarditis secondary to influenza and community-acquired methicillin-resistant Staphylococcus aureus co-infection.

Purulent pericarditis occurs rarely in the current antibiotic era. We describe clinical and echocardiographic features of purulent pericarditis in a previously healthy child with influenza and community-acquired methicillin-resistant Staphylococcus aureus co-infection. The child was already on appropriate antibiotics and had a very subtle clinical presentation, with prominent abdominal symptoms. Timely surgical drainage led to complete recovery.