Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Clips in the left axilla noted . There is absence of the left breast shadow . Lungs are hyperinflated which likely reflects emphysema / COPD . No large effusion or pneumothorax . Cardiomegaly is mild . Mediastinal contour is unchanged . Biapical pleural parenchymal scarring is unchanged . Bony structures are intact .
    OUTPUT:
    
No acute intrathoracic process .