Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates clear lungs bilaterally . There is no focal consolidation concerning for pneumonia . Cardiomediastinal and hilar contours are within normal limits . Biapical pleural thickening and nodularity is identified which appear symmetric . This is likely to reflect pleural parenchymal scarring . There is no pleural effusion or pneumothorax . Visualized osseous structures demonstrate no acute abnormality . No free air under the right hemidiaphragm is seen .
    OUTPUT:
    
No free air under the right hemidiaphragm . Biapical pleural thickening and nodularity likely reflective of pleural parenchymal scarring . If referable symptomatology exists , nonemergent Chest CT for further evaluation is recommended .