To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Video 1 2D video at 0° demonstrating spontaneous echo contrast and stenotic mitral valve. View Video 1 at http://movie-usa.glencoesoftware.com/video/10.1530/ERP-17-0029/video-1. A striking image of spontaneous echo contrast in severe mitral stenosis in a patient with good international normalised ratio (INR) control Daniel A Jeffery, Guy Lloyd, and Arjun K Ghosh 2017. 4:I13-I14 DOI: 10.1530/ERP-17-0029 Download Original Video