Acute ulcerative polypoid <a href="https://en.wikipedia.org/wiki/endocarditis" class="extiw" title="w:endocarditis">endocarditis</a> of the aortic valve few weeks after valve surgery.
<a href="//commons.wikimedia.org/wiki/User:Patho" title="User:Patho">Patho</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>