单项选择题
A 45-year-old woman has had worsening shortness of breath for 3 years.She now has to sleep sitting up on two pillows.She has had difficulty swallowing for the past year.She has no history of chest pain.A month ago, she had a "stroke" with resultant inability to move her left arm.A chest radiograph reveals a near-normal left ventricular size with a prominent left atrium and enlarged right ventricle.There is marked pulmonary edema.Which of the following conditions is most likely to account for her findings? ()
A．Essential hypertension
B．Cardiomyopathy
C．Mitral valve stenosis
D．Aortic coarctation
E．Patent foramen ovale
A 45-year-old woman has had worsening shortness of breath for 3 years.She now has to sleep sitting up on two pillows.She has had difficulty swallowing for the past year.She has no history of chest pain.A month ago, she had a "stroke" with resultant inability to move her left arm.A chest radiograph reveals a near-normal left ventricular size with a prominent left atrium and enlarged right ventricle.There is marked pulmonary edema.Which of the following conditions is most likely to account for her findings? ()
A．Essential hypertension
B．Cardiomyopathy
C．Mitral valve stenosis
D．Aortic coarctation
E．Patent foramen ovale