Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a prominent left hilar mass , with reticular opacities extending to the left chest wall , consistent with known history of malignancy and radiation therapy , however no previous radiographs are available for comparison . There is no focal consolidation to suggest pneumonia . No pleural effusion or pneumothorax . The lungs are hyperinflated . Cardiac size is normal .
    OUTPUT:
    
Left hilar mass with reticular opacities extending to the chest wall is consistent with known history of malignancy and radiation therapy , however no previous images are available for comparison . No pneumonia . Recommend obtaining previous radiographs for comparison .