eng Science and Education Publishing American Journal of Medical Case Reports 2374-216X 2015-08-20 3 9 288 290 10.12691/ajmcr-3-9-7 AJMCR2015397 article Nicolas LEDUC 1 Vincent MOLINIE 2 Vincent VINH-HUNG nicolas.leduc.mail@gmail.com 2 Radiation Oncology, University Hospital of Martinique, France Anatomic pathology, University Hospital of Martinique, France Atrial myxoma is a rare condition. Cardiac failure after left breast cancer treatment is not usually attributed to such pathology. We describe the case of a 69 year-old female who presented two sub-obstructive left atrium myxomas one year after the end of left breast cancer treatment. Acute cardiac failure, without history of prior cardiovascular disease, could have resolved from the combination of various factors involving myxomas and complications of radiotherapy and chemotherapy. The absence of atrial images on the computerised tomography and ultrasonography performed before cancer treatment question the accuracy of diagnosis imaging as well as the actual rate of growth of cardiac myxoma. http://pubs.sciepub.com/ajmcr/3/9/7/ajmcr-3-9-7.pdf left breast cancer atrial myxoma radiation therapy