This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
Mid diastolic murmur with presystolic accentuation is typically seen in 
Select and explain. 
A. Mitral stenosis, B. Mitral regurgitation, C. Aoic stenosis, D. MVP
A: Mitral stenosis
Answer: A: Mitral stenosis 
Explanation: Ref Harrison 19 th ed pg 1540 In patients with sinus rhythm, the murmur often reappears or becomes louder during atrial systole (presystolic accentuation). Soft, grade I or II/VI systolic murmurs are commonly heard at the apex or along the left sternal border in patients with pure MS