Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear bilaterally . The right lung fields have a higher uniform attenuation with a thickened pleura and smaller volume than the left most consistent with previous pleurodesis . The left lung fields are unremarkable . There is an ICD device seen in position with leads in the right atrium and right ventricle . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is within normal limits . There are very mild multilevel degenerative changes of the thorax seen .
    OUTPUT:
    
No evidence of infection or malignancy . Increased attenuation in the right hemithorax most consistent with previous pleurodesis .