To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Video 1 Parasternal long axis view (PSLAX) demonstrating a normal mitral valve (normal anterior mitral valve leaflet (AMVL) thickness, no RHD-related restriction of either MV leaflets. View Video 1 at http://movie-usa.glencoesoftware.com/video/10.1530/ERP-18-0010/video-1. Inter-scallop separations of the posterior leaflet of the mitral valve: an important cause of ‘pathological’ mitral regurgitation in rheumatic heart disease screening L D Hunter, M Monaghan, G Lloyd, A J K Pecoraro, A F Doubell, and P G Herbst 2018. 5:K29-K34 DOI: 10.1530/ERP-18-0010 Download Original Video