Mid-oesophageal bi-commissural view with colour Doppler demonstrating a moderate to severe jet of mitral regurgitation at the level adjacent to A1/P1 scallops with the MR jet appearing to spread obliquely across the left atrium. View Video 1 at http://movie-usa.glencoesoftware.com/video/10.1530/ERP-19-0058/video-1.