In February 2007, a 25-year-old man complained of dyspnea classified as New York Heart Association II. He was a current smoker (10 pack-years), reporting one episode of hemoptysis after physical effort and pneumonia 5 years ago. Standard radiography showed right hilar anomalies. Spirometry showed that FEV1 was 2.6 L (56% predicted) and FVC was 3.56 L (64% predicted). FEV1/FVC, forced expiratory flow at 75%, forced expiratory flow at 25% to 75%, and residual volume were 80%, 45%, 39%, and 124% predicted, respectively. Based on lung scintigraphy, the left lung assumed 60% of total ventilation and 69% of total perfusion.