Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Left mid lung linear atelectasis noted . No convincing signs of pneumonia or edema . No large effusion or pneumothorax . The heart appears mildly enlarged . The aorta is unfolded . Mediastinal and hilar contours appear normal in stable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Mild cardiomegaly . Otherwise unremarkable .