This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, 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: An opening snap, mid-diastolic rumbling murmur, presystolic accentuation and loud first hea sound are all characteristic of mitral stenosis.The mid-diastolic rumble (murmur) stas with the opening snap and may extend to the S1 with presystolic accentuation.Ref: Harrison's 18/e. p1930, 1931.