Erdheim–Chester disease presenting as an intracardiac mass and pericardial effusion confirmed by biopsy: a case report

Erdheim-Chester disease (ECD) is a rare non-Langerhans cell histiocytosis that can affect the bones, heart, lungs, brain, and other organs. Cardiovascular involvement is common in ECD and is associated with a poor prognosis. Here, we report a case of ECD presenting as an intracardiac mass and pericardial effusion confirmed by biopsy with sternotomy.A 54-year-old man was admitted because of dyspnoea. He was previously diagnosed with bilateral...