Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The cardiac silhouette is mildly enlarged . The aorta is calcified and tortuous . There is mild left base atelectasis / scarring . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . There is no pulmonary edema . Mild degenerative changes are seen along the spine and at the acromioclavicular joints .
    OUTPUT:
    
Mild cardiomegaly without pulmonary edema .