Case of the Month 2015-10, Page 4

Answer: B, C, D

While there is no pulmonary embolus, there IS right heart strain as evidenced by the straightening of the interventricular septum and ballooning of the right atrium. Subsequent echocardiogram estimated pulmonary artery pressure as 38 mmHg (normal <25 mmHg).

What is the cause of these cardiac findings?
A) Chronic pulmonary emboli
B) Pulmonary fibrosis
C) Malignancy
D) Infection

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