A left atrial calcified amorphous tumor

In this article, we present a 82-year-old female case without any previous history of heart disease diagnosed with a hyperdense mass originating in left atrial side of the interatrial septum on echocardiography. The patient was scheduled for surgery. Left atrium was entered through the interatrial groove. The tumor was found attached to the interatrial septum. It was macroscopically creamish-yellow colored, 20×10 mm in size and solid in texture. It was totally resected from its attachments to the interatrial septum. Light microscopy showed polypoid formations with prominent papillary structures including scattered hyalinized areas and large areas of calcification. The mass was pathologically diagnosed as cardiac calcified amorphous tumor. She was discharged under medical treatment on seventh day after surgery.