Tanaka Akihito, Mizuno Masashi, Suzuki Yasuhiro, Oshima Hideki, Sakata Fumiko, Ishikawa Hideaki, Tsukushi Saori, Ito Yasuhiko
Division of Nephrology, Nagoya University Graduate School of Medicine, Japan.
Intern Med. 2015;54(5):481-5. doi: 10.2169/internalmedicine.54.2967. Epub 2015 Jan 15.
A 66-year-old woman with an 11-year history of peritoneal dialysis (PD) for diabetic nephropathy and renal failure exhibited a movable tumor in the left atrium on echocardiography. Tumor resection was performed due to the difficulty in diagnosing the tumor and the future risk of heart failure and embolization. Light microscopy showed a calcified amorphous tumor (CAT), a rare intracardiac mass characterized by the presence of a pedicle and diffuse calcification. An increased calcium-phosphate product level was suspected as an etiology, although degeneration, inflammation and/or mineral balance disorders may also induce the development of CAT. We herein report the first known case of CAT in a PD patient.
