CTICasesPrimary Cardiac Epithelioid Hemangioendothelioma
Imaging findings
CT shows a large, lobulated mass in the right atrium extending through the Eustachian valve into the coronary sinus and cardiac veins. Massive sausage-like filling defects are present in the pulmonary arteries, representing tumor emboli. Pathology confirmed epithelioid hemangioendothelioma.
Key takeaways
Epithelioid hemangioendothelioma is a rare vascular tumor that can arise primarily in the right atrium. It can invade the coronary sinus and shed tumor emboli into the pulmonary arteries, mimicking acute thromboembolism.
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