Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Multifocal opacities , primarily affecting the left lung are concerning for pneumonia . There is no pleural effusion . The heart is normal in size . The aorta is tortuous . Of note , the left main pulmonary artery is prominent , similar in appearance to ___ .
    OUTPUT:
    
Multifocal opacities , primarily affecting the left lower and perihilar lung concerning for pneumonia . Prominent left pulmonary artery , as before .