The document contains 12 case reports of patients presenting with mitral stenosis. The cases describe the patients' histories, examination findings, test results and treatment. Mitral stenosis is characterized by a narrowing of the mitral valve opening between the left atrium and ventricle. Common causes include rheumatic fever. Symptoms include shortness of breath and signs include murmurs, increased pulse and elevated jugular venous pressure. Treatment options include medical management, percutaneous mitral valve procedures or surgery.