Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Slight rotation of the patient limits assessment , with obscuration of the right heart border due to superimposition with the spine . The lungs are hyperinflated , with flattening of the diaphragm and attenuation of the peripheral vessels compatible with emphysema . There are no focal opacities concerning for pneumonia . Linear opacities in the left lung base were present on ___ and likely represent scarring . Mild cardiomegaly is redemonstrated with significant contribution from the left atrium . There is no pleural effusion or pneumothorax . A bicameral pacemaker is redemonstrated with the leads ending in appropriate position .
    OUTPUT:
    
Hyperinflated lungs . No evidence of pneumonia .