%0 Journal Article %T An illustrative case of endocardial fibroelastosis and recalcitrant intracardiac thrombosis: a case report %A Denizhan Ozdemir %A Isabel Oliva Cortopassi %A Robert Lawrence McNamara %J Archive of "Thrombosis Journal". %D 2019 %R 10.1186/s12959-019-0199-3 %X a, arrow: Short axis late gadolinium enhancement images through the right atrium demonstrate thrombus formation measuring 29£¿¡Á£¿22 mm three weeks after switch from apixaban to warfarin. b, arrow: The thrombus enlarged to 71£¿¡Á£¿21 mm 3£¿months after continuing use of warfarin. c, arrow: The thrombus diminished to 31£¿¡Á£¿5 mm 5£¿months after discontinuation of warfarin and re-instating apixaba %K Endocardial fibroelastosis %K Atrial thrombus %K Apixaban %K Novel oral anticoagulant agent %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6554984/