Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiograph demonstrates a borderline enlarged heart . The aorta is minimally unfolded with atherosclerotic calcifications at the aortic knob . No evidence of overt pulmonary edema . There is no large pleural effusion or pneumothorax . Obscuration of the left hemidiaphragm is likely reflective of atelectasis . No focal consolidation convincing for pneumonia is seen .
    OUTPUT:
    
No evidence convincing for pneumonia .