Various thrombo-embolic complications have been related to the antiphospholipid syndrome. The authors report the case of a patient with a primary antiphospholipid syndrome associated with a right auricular mass highly suggesting a myxoma by both echocardiography and nuclear magnetic resonance imaging. Meanwhile, the histological examination of the operative specimen showed a well organized and calcified thrombus. Intracardiac thrombus has been rarely reported as a complication of the antiphospholipid syndrome. The preoperative investigations can't differenciate such a thrombus with a myxoma and the diagnosis is usually made postoperatively.
Denie, C., Lefebvre, C., Dion, R., & Coche, E. (1994). Thrombus de l’oreillette droite simulant un myxome au cours d’un syndrome primaire des antiphospholipides. La Revue de médecine interne, 15(6), 409-411. https://doi.org/10.1016/S0248-8663(05)81457-2 (Original work published 1994)