Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . Low lung volumes accentuate the interstitial markings . There is no focal consolidation , effusion , or pneumothorax . Cardiomegaly is mild . Cardiac and mediastinal contours are normal .
    OUTPUT:
    
1 . Mild cardiomegaly . 2 . No acute cardiopulmonary process .