CTICasesPurulent pericarditis complicating TBNA
Imaging findings
CT scan shows rapid post-TBNA enlargement of paratracheal/subcarinal lymph nodes and a large pericardial effusion. Blood cultures grew Streptococcus intermedius.
Key takeaways
Bacterial mediastinitis and purulent pericarditis can complicate TBNA if infection spreads from the biopsied node into the pericardial space. Organisms of the Streptococcus milleri group (such as S. intermedius) are common pathogens.
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