Mitral Stenosis, X-Ray Findings with Figure What is Mitral Stenosis? There are four valves in heart. One of them is Mitral valve which is situated between Left atrium and left ventricle. If the Valve becomes stenosed (narrow), then it is called mitral stenosis. Common causes of Mitral Stenosis: Most Common Cause is Chronic Rheumatic Heart Disease, in 50% cases … [Read more...] about Mitral Stenosis X-Ray Findings with Figure