Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate slightly low lung volumes . The heart is mildly enlarged with a left ventricular configuration . The lungs are clear . There is no pneumothorax , vascular congestion , or pleural effusion . Trace dependent atelectasis may be present on the left .
    OUTPUT:
    
No definite evidence for pneumonia .