@article{oai:shiga-med.repo.nii.ac.jp:00004000,
 author = {鈴江, 隆志 and 澤山, 裕一 and 鈴木, 友彰 and 中川, 義久 and SUZUE, Takashi and SAWAYAMA, Yuichi and SUZUKI, Tomoaki and NAKAGAWA, Yoshihisa},
 issue = {8},
 journal = {European Heart Journal - Case Reports},
 month = {Aug},
 note = {pdf, Background:
A cardiac calcified amorphous tumour (CAT) is a non-neoplastic intracavitary cardiac mass. The most serious complication is systemic embolism. Cardiac CATs tend to be surgically resected immediately after detection; therefore, its progress of growth is rarely reported., Case summary:
An 83-year-old Japanese woman received on-pump beating coronary artery bypass graft surgery (CABG) for angina pectoris. Transthoracic echocardiography (TTE) performed preoperatively and 1 month postoperatively revealed the presence of mitral annular calcification, with no other abnormal findings. However, follow-up TTE performed 5 months after CABG revealed a mobile nodular mass (5.0 × 8.2 mm) in the left ventricular outflow tract. At 1 month after detection, the mass had enlarged to 5.0 × 13.0 mm. Transoesophageal echocardiography revealed that the pedunculated high-echoic mass was adhered to the posterior commissure of the mitral valve and was dynamically swinging towards the non-coronary cusp in the systolic phase. As the mass had grown rapidly in less than 6 months, it was surgically resected to prevent systemic embolism. The histological specimen consisted mainly of fibrin, including calcification and hemosiderin deposition, which lead to a diagnosis of cardiac CAT. The patient had an uneventful postoperative course during her hospital stay and had no evidence of recurrence for 1 year after discharge., Discussion:
This was a rare case in which a rapidly growing cardiac CAT was detected following on-pump CABG. Cardiac CATs may grow very rapidly and therefore early surgery should be considered after initial diagnosis., Journal Article},
 title = {A rapidly growing cardiac calcified amorphous tumour diagnosed after coronary artery bypass graft surgery : a case report.},
 volume = {5},
 year = {2021}
}