Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well - expanded and clear . No focal consolidation , pulmonary edema , pleural effusion , or pneumothorax . The heart size is normal . There is mild prominence of the pulmonary artery , which could be normal . The hila and pleura are unremarkable .
    OUTPUT:
    
1 . No pneumonia . 2 . Mild prominence of the pulmonary artery , which could be normal for the patient 's age . However , this might also suggest pulmonary hypertension , or if clinical exam demonstrates a murmur , pulmonary stenosis .