You are incorrect - the most likely etiology of our patient's pulmonary hypertension is idiopathic pulmonary arterial hypertension.


Your choice: Dilated cardiomyopathy

Patients with dilated cardiomyopathy usually present with symptoms of biventricular dysfunction, including orthopnea, paroxysmal nocturnal dyspnea and peripheral edema. Physical findings include a narrow pulse pressure, a reduced carotid pulse, an inferolaterally displaced left ventricular impulse along with features of right sided dysfunction.