Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation to suggest pneumonia is seen . Linear opacities at the bases likely reflect subsegmental atelectasis . No pneumothorax or pleural effusion is seen . No pulmonary edema is present . The heart , mediastinal and pleural surface contours are normal .
    OUTPUT:
    
No radiographic evidence of pneumonia .