CTICasesRight Atrial Myxoma with Ossification
Imaging findings
Incidental calcification adjacent to the right heart is seen on an abdominal CT. Subsequent cardiac MRI and CT demonstrate a right atrial myxoma with pathologic confirmation of focal ossification within the tumor corresponding to the calcification seen on CT. The myxoma has the typical appearance of an intracavitary mass with central calcification.
Key takeaways
Cardiac myxomas can undergo focal ossification, which may be detected as an incidental calcification adjacent to the cardiac chambers on non-dedicated CT. While calcification in cardiac myxoma is recognized, it is uncommon and the association with ossification histologically may be even rarer. The incidental detection of calcification near the right heart on abdominal CT should prompt dedicated cardiac imaging to exclude an intracardiac mass.
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