Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low limiting assessment . Overlying EKG leads are present . There is mild left basilar atelectasis without convincing evidence for pneumonia . No large effusion or pneumothorax . Heart size is normal . The aorta is unfolded with calcifications noted . Bony structures appear grossly intact .
    OUTPUT:
    
No convincing evidence for pneumonia . Mild left basal atelectasis .