Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size remains mildly enlarged . The aorta is tortuous . Mediastinal contour is unchanged . There is crowding of the bronchovascular structures without overt pulmonary edema . Bibasilar airspace opacities are worse compared to the previous chest radiograph , and the left basilar opacity appears to be new compared to the previous CT . A small left pleural effusion may be present . No pneumothorax is demonstrated . Previously demonstrated ill - defined nodular opacities in the right upper lobe on CT are likely still present on the current radiograph . Diffuse demineralization of the osseous structures is re - demonstrated . Degenerative changes of both shoulders are again noted along with narrowed acromial humeral intervals suggestive of rotator cuff disease .
    OUTPUT:
    
Bibasilar airspace opacities , with the left basilar opacity appearing new compared to the prior CT . Findings are concerning for atelectasis superimposed with aspiration or infection .