Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Persistent rounded opacity along the right hilum represents a large right pulmonary artery . Focal nodule in the right upper lung seen on most recent chest CT from ___ is not well seen on the current chest radiograph . Severe emphysematous changes with reduced lung markings most predominantly in the left upper lobe and flattening of the hemidiaphragms is again noted . No pleural effusion or pneumothorax is seen . Persistent tenting of the right hemidiaphragm likely secondary to prior inflammatory changes , unchanged . The cardiac and mediastinal silhouettes are unremarkable . The aorta is tortuous , unchanged .
    OUTPUT:
    
1 . Focal nodule seen in the right upper lung on most recent chest CT from ___ is not well assessed on the current chest radiograph . Recommend repeat chest CT to assess resolution . 2 . Large right pulmonary artery . 3 . Severe emphysema .