Sarcoidosis presenting as cardiac tamponade: a case report.

A 62-year-old man without medical history presented with a cardiac tamponade due to a voluminous sterile hemorrhagic exudate. Hypermetabolic mediastinal lymph nodes were found on a PET-CT and pathological analysis revealed non-necrotizing granulomatous adenitis, a finding compatible with sarcoidosis. Steroids were started with rapid clinical improvement and complete resolution of the pericardial effusion.