Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest demonstrates unchanged cardiomegaly . The patient is area of rounded atelectasis in the left mid lobe appears to have somewhat resolved . No focal opacities concerning for infection . Left lower lobe atelectasis is present . No pleural effusion or pneumothorax . There is possible minimal increased left lung hazy opacity which could be due to edema .
    OUTPUT:
    
Possible mild edema .