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6187 Pathology

A 45-year-old man has had progressive dyspnea on exertion with fatigue for the past 2 years. On auscultation of his chest he has a prominent pulmonary component of S2, a systolic murmur of tricuspid insufficiency, and bruits over peripheral lung fields. Jugular venous distension is present to the angle of his jaw when sitting. Laboratory studies show antiphospholipid antibodies. CT angiography shows eccentric occlusions with pulmonary arteries and mosaic attenuation of pulmonary parenchyma. Which of the following is the most likely disease process causing his pulmonary disease?

AAtherosclerosis
BPneumonitis
CSarcoidosis
DThromboembolism
Pathology
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