Cardiac Calcified Amorphous Tumors in a Patient with Hemodialysis for Diabetic Nephropathy

• Published in: Internal Medicine Vol. 56; no. 22; pp. 3057 - 3060
• Main Authors: Yoshimura, Satoshi, Kawano, Hiroaki, Minami, Takako, Tsuneto, Akira, Nakata, Tomoo, Koga, Seiji, Ikeda, Satoshi, Hayashi, Tomayoshi, Maemura, Koji
• Format: Journal Article
• Language: English
• Published: Japan The Japanese Society of Internal Medicine 15.11.2017; Japan Science and Technology Agency
• Subjects: Amorphous materials; Calcification; Calcium; cardiac mass; Case Report; Case reports; chronic renal failure; Diabetes; Diabetes mellitus; End-stage renal disease; Etiology; Heart diseases; Hemodialysis; Internal medicine; Kidney diseases; Kidney transplantation; Nephropathy; Tumors; cardiac mass; chronic renal failure; calcification
• ISSN: 0918-2918; 1349-7235
• DOI: 10.2169/internalmedicine.9057-17

Calcified amorphous tumor (CAT) is a rare, non-neoplastic tumor involving calcium deposition in amorphous materials. Although its etiology is unknown, cases have frequently been reported in patients with hemodialysis for chronic kidney disease. We herein describe a case of cardiac CAT in a 64-year-old woman who had been on hemodialysis for diabetic nephropathy for 20 years, and the findings of the present patient, in association with the findings of previous case reports, suggest that end-stage renal disease seems to play an important role in the onset of CAT, especially in CAT formation at the mitral annulus, which appears to differ from CAT occurring at other sites.