A 34-year-old woman comes to the Emergency Department due to shortness of breath and cough. The cough is a productive type with mucoid and slightly blood-tinged sputum. Since childhood, she has had a history of asthma and takes an albuterol inhaler for acute episodes. She was hospitalized two times in the last six months due to exacerbation. The patient has no history of weight loss or decrease in appetite. Travel history is negative. She does not use tobacco, alcohol, or illicit drugs. Temperature is 37C (98.6 F), blood pressure is 128/80 mm Hg, pulse is 87/min, respirations are 17/min, and Spo2 is 95% in room air. On examination, wheezes are heard bilaterally. Heart sounds are normal without murmurs. There is no clubbing or peripheral edema. Laboratory reports reveal a Hb level of 12.5 g/dl; a leukocyte count is 12,800/mm3. Neutrophils count 68%, lymphocytes 20%, Eosinophils 11%, Monocytes 2%. Chest x-ray shows an infiltrate in the upper lobe. CT chest reveals the exhibit below.