Calcified Amorphous Tumor with Caseous Calcification of Mitral Annulus in Hemodialysis Patients
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Shinji Kanemitsu1,2, Saki Bessho1, Shunsuke Sakamoto1, Naoki Yamamoto1, Hisato Ito1, Tairo Kurita1, Kaoru Dohi1, Masaaki Ito1, Hideto Shimpo1 1Department of Thoracic and Cardiovascular Surgery, Department of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan2Electronic correspondence: skanemitsu70@gmail.com |
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Mitral annular calcification (MAC) is a common finding, especially among the elderly. Caseous calcification of the mitral annulus (CCMA) is a rare variant of MAC. Calcified amorphous tumor (CAT) is an extremely rare non-neoplastic cardiac tumor accompanied by calcification and is often associated with MAC. Two patients were encountered with end-stage renal failure in whom a cardiac CAT developed on the mitral annulus. In both patients, preoperative examination showed MAC of the posterior mitral annulus and a mobile mass attached to the MAC. CAT and CCMA were considered, and surgical resection was performed because of a high risk of |
systemic embolization. Intraoperatively, the mobile mass was seen to be associated with the CCMA and was removed entirely; a diagnosis of CAT was confirmed histologically. Herein are reported two cases of CAT arising from CCMA in patients undergoing hemodialysis, and highlight the characteristic imaging features and operative findings. The Journal of Heart Valve Disease 2018;27:182-184 |
| Calcified Amorphous Tumor with Caseous Calcification of Mitral Annulus in Hemodialysis Patients | |
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