A Man in His 50s With Hemoptysis, Dyspnea, and Bilateral Patchy Ground-Glass Opacities

A man in his 50s presented to the ED with a 3-day history of small-volume hemoptysis and new-onset dyspnea. The patient did not have fevers, chills, chest pain, abdominal pain, or changes in urination. His medical history included hypertension, a 35-pack-year active smoking history, and occupational hydrocarbon exposure as a mechanic in the foresting industry. He reported no recent travels, and he denied sick contacts. His medications included amlodipine, hydrochlorothiazide, lisinopril, omeprazole, and nicotine replacement therapy.