A 53-year-old man presented to the emergency department complaining of hemoptysis and a 3-month history of progressive dyspnea on exertion. He also reported a history of dry cough, malaise, anorexia, and 20-lb weight loss within the same time period. He smoked one pack of cigarettes per day for 30 years. His medical history was unremarkable. Occupational and family histories were noncontributory.
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