Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is unchanged . The cardiomediastinal contours are unremarkable . Again seen are bilateral focal areas of apical thickening , likely secondary to pleuroparenchymal thickening / scarring . The appearance of the perihilar region is unchanged . There is no evidence of acute consolidation . No pleural effusions or pneumothorax is identified . The visualized osseous structures are unremarkable . There has been interval decrease in the amount of subcutaneous gas .
    OUTPUT:
    
No acute changes compared to the prior exam to explain patient 's new onset of shortness of breath .