Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a new left mid and lower lung zone parenchymal opacity which is highly suggestive of an infectious process . There is also a small left - sided pleural effusion . The right basilar opacity present on prior chest x-rays is not as extensive on today 's chest x-ray . There is retrocardiac atelectasis . The mediastinal and hilar contours are normal , and the heart size is normal .
    OUTPUT:
    
1 . New left mid and lower lung zone opacity with small left pleural effusion consistent with pneumonia . 2 . Improved right basilar opacity . 3 . Retrocardiac atelectasis . Wet read was called to ___ by Dr . ___ ___ telephone at 10 :51 , 10 minutes after the time of discovery .