Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Left chest wall pacer device is seen with dual leads extending to the region of the right atrium and right ventricle . Midline sternotomy wires and mediastinal clips are again seen . The heart is top - normal in size . There are linear densities in the lower lungs which could reflect atelectasis or scarring less likely pneumonia or aspiration . No effusion or pneumothorax . Mediastinal and hilar configuration is unchanged and within normal limits . Imaged bony structures are intact . DISH related changes of the T - spine noted .
    OUTPUT:
    
Streaky lower lung opacities likely representing atelectasis or scarring , less likely pneumonia . Borderline cardiomegaly .