Fig. 2
From: Non-bacterial thrombotic endocarditis in the right atrium caused by pectus excavatum
Intraoperative macro- and microscopic finding of the thrombus. a Intraoperative appearance of the right atrium tumor: A tumor is attached to the suture line of the previous right atriotomy. b Macroscopic finding of the tumor: the tumor was about 10 mm large in diameter. c Microscopic findings (hematoxylin and eosin stain, ×40): cicatricial fibrotic thickening and calcification of the endocardium (black star) and a platelet-fibrin thrombus (white star) are seen. d Microscopic findings (hematoxylin and eosin stain, ×100): granulation tissue formation with capillary vessels and calcification is seen between the platelet-fibrin thrombus and calcified and fibrotic thickened endocardium. Tissue damage is seen (black arrows), suggesting a persistent external force