<prompt> Answer this question truthfullyWhat pathology is highly suggested by a mitral valve with diffuse fibrous thickening and distortion, commissural fusion at the leaflet edges, and narrowing of the mitral valve orifice?  <response>: <reason> The pathology that is highly suggested by a mitral valve with diffuse fibrous thickening and distortion, commissural fusion at the leaflet edges, and narrowing of the mitral valve orifice is mitral stenosis. 