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Updated: Apr 16, 2026

A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro
Published on: June 2, 2022
Cardiac calcified amorphous tumor in a hemodialysis patient
Hiroyuki Seo1, Hiromichi Fujii2, Takanobu Aoyama2
1Department of Cardiovascular Surgery, Japan Community Health Care Organization, Osaka Hospital, Osaka, Japan h_s_1024@yahoo.co.jp.
Abstract:
We present a case of cardiac calcified amorphous tumor, a rare intracardiac non-neoplastic tumor, in a hemodialysis patient. A 72-year-old woman with no history of thromboembolic, malignant, or inflammatory disease presented with dyspnea. Echocardiography revealed a highly echoic, slightly mobile mass with an acoustic shadow originating from the mitral subvalvular apparatus, extending to the left ventricular outflow tract. She underwent surgical resection of the mass through the aortic valve, which was easily excised from the papillary muscle and chordae tendineae. Histopathologic examination revealed nodular calcium deposits on a background of amorphous degenerated fibrin material, consistent with calcified amorphous tumor.
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