Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are slightly hyperinflated . No focal consolidations are seen . Slight irregularity of the left heart border is secondary to the patient 's known fat pad . No pleural effusion or pneumothorax is seen . The heart is normal in size . There is no evidence of pneumoperitoneum . Osseous structures are unchanged .
    OUTPUT:
    
No acute intrathoracic process .