摘要
To the Editor:A 48-year-old Chinese woman complained the chest distress,shortness of breath and amaurosis fugax for 3 months.The above clinical symptoms worsened gradually 1 week ago.The diastolic rumbling murmur was heard on the third and fourth intercostal space of the left sternum during a physical examination,when the patient was sitting down.The patient's vital signs were stable.A laboratory test revealed normal.
